# notes_to_financial_statements_122_1_duration

entity_id: C001087
filing_name: MountainWest_Overthrust_Pipeline,_LLC_form2_Q4_1686799510
publication_time: 2023-06-14 23:25:10.000000
start_date: 2022-01-01
end_date: 2022-12-31
disclosure_of_important_disclosures_regarding_the_financial_statements_text_block:
  <div style="margin-top:12pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">GENERAL NOTES:</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">BASIS OF PRESENTATION</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">These financial statements are prepared in accordance with the accounting requirements of the Federal Energy Regulatory Commission (FERC) as set forth in its applicable Uniform System of Accounts (USofA) and published accounting releases which is a comprehensive basis of accounting other than accounting principles generally accepted in the United States of America (GAAP). The principal differences from GAAP include:</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">a) Income tax expense is reported separately in Net Utility Operating Income and Net Other Income and Deductions rather than being reported as a single net income tax amount. Where uncertainties exist with respect to income tax positions involving temporary differences, Overthrust has recorded accumulated deferred income taxes based on the positions taken in the income tax returns filed or expected to be filed.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">b) Deferred tax assets and liabilities for a jurisdiction are reported separately rather than being netted and reported as a single amount. Deferred taxes are recorded in Accounts 190 - </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, 282 -</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes-Other Property</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or 283 - </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes-Other</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, as appropriate..</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">c) The provision for future cost of removal is included in accumulated depreciation and not as a regulatory liability.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">d) For GAAP purposes, regulatory assets and liabilities are classified as current and noncurrent. For FERC purposes, regulatory assets and liabilities are recorded in accounts 182.3-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Regulatory Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> and 254-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, respectively, with no distinction between current and noncurrent.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">e) An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018 (previously known as The Tax Cuts and Jobs Act) enacted on December 22, 2017 (the 2017 Tax Reform Act), includes provisions that stipulate how excess deferred taxes are to be passed back to customers for certain accelerated tax depreciation benefits. As a pass-through entity, Overthrust was not subject to entity level</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">income taxes through November 4, 2019. However, in accordance with FERC requirements, Overthrust recorded </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">an estimated regulatory liability for excess deferred income taxes expected to be returned to customers for FERC purposes.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">f)</span><span style="color:#ff0000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Amounts pertaining to restricted cash were included in beginning and end of period cash balances for the GAAP presentation of the Statement of Cash Flows; however, there is no such FERC presentation for Overthrust’s Statement of Cash Flows included herein.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">g) Intangible assets are reported in utility plant and not as a separate intangible asset account. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Statement of Cash Flows</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:112%"> </span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.940%"><tr><td style="width:1.0%"/><td style="width:56.266%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.445%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:15.671%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.445%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:15.673%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Twelve Months Ending December 31</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:112%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2021</span></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Supplemental Disclosure</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Cash paid during year for interest</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">1.9</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">1.9</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Purchase accounting adjustment</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(1.0)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Equity settlement of income taxes</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">73.5</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Significant noncash investing and financing activities:</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Accrued capital expenditures</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">— </span></td><td style="border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.1</span></td></tr></table></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Notes to Financial Statements</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 1. Nature of Operations</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust owns and operates interstate natural gas pipelines in the state of Wyoming and is headquartered in Salt Lake City, Utah. Overthrust is a wholly-owned subsidiary of MountainWest Pipeline, LLC (MountainWest Pipeline), a wholly-owned subsidiary of MountainWest Pipelines Holding Company, which is a wholly-owned subsidiary of Southwest Gas Holdings, Inc. (Southwest Gas). Overthrust and MountainWest Pipeline were acquired by Southwest Gas from Dominion Energy, Inc. on December 31, 2021.</span></div><div style="text-align:justify"><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On December 14, 2022, Southwest Gas, MountainWest Pipelines Holding Company, and Williams Partners Operating LLC, a wholly owned subsidiary of The Williams Companies, Inc (Williams). entered into a Purchase and Sale Agreement to which Southwest Gas sold all of its equity interests in MountainWest to Williams. The sale was completed on February 14, 2023.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 2. Significant Accounting Policies</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">General</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust makes certain estimates and assumptions in preparing its financial statements in accordance with the USofA. These estimates and assumptions affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue, expenses and cash flows for the periods presented. Actual results may differ from those estimates.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Operating Revenue</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Operating revenue is recorded on the basis of services rendered, commodities delivered or contracts settled and includes amounts yet to be billed to customers. The straight-fixed-variable rate design used by Overthrust allows for recovery of substantially all fixed costs in the demand or reservation charge and reduces the earnings impact of volume changes on gas-transportation operations. Overthrust may collect revenues subject to possible refunds and establish reserves pending final orders from regulatory agencies. Customer receivables at December 31, 2022 and 2021 included $6.6 million and $5.7 million, respectively, of accrued unbilled revenue based on estimated amounts of natural gas delivered but not yet billed to its customers. Operating revenue consists primarily of FERC-regulated transmission-related services.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Transportation contracts are primarily stand-ready service contracts that include fixed reservation and variable fees. Fixed fees are recognized ratably over the life of the contract as the stand-ready performance obligations are satisfied, while variable usage fees are recognized when Overthrust has a right to consideration from a customer in an amount that corresponds directly with the value to the customer of the performance obligation completed to date. Substantially all of Overthrust’s revenues are derived from performance obligations satisfied over time, rather than recognized at a single point in time. The contract with the customer states the final terms of the sale, including the description, quantity and price of each product or service purchased. Payment for most sales and services varies by contract type, but is typically due within a month of billing.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Purchased Gas – Deferred Costs</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The difference between purchased gas expenses and the related levels of recovery for these expenses in current rates are deferred and matched against recoveries in future periods. The deferral of costs in excess of current period fuel rate recovery is recognized as a regulatory asset, while rate recovery in excess of current period fuel expenses is recognized as a regulatory liability.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Cash, Restricted Cash and Equivalents</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">For purposes of the Statement of Cash Flows, cash and cash equivalents include cash on hand, cash in banks and temporary investments purchased with an original maturity of three months or less.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Current banking arrangements generally do not require checks to be funded until they are presented for payment. At December 31, 2022 and 2021, there were no checks outstanding but not yet presented for payment.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust holds restricted cash and cash equivalent balances that consist of amounts held for customer deposits.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust held $0.9 million and $0.5 million at December 31, 2022 and 2021, respectively. These amounts are shown on Overthrust’s Comparative Balance Sheet in Account 134– </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Special Deposits</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Property, Plant and Equipment</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Property, plant and equipment, including additions and replacements is recorded at original cost, consisting of labor and materials and other costs such as asset retirement costs, allowance for funds used during construction (AFUDC) and overhead costs. The cost of repairs and maintenance, including minor additions and replacements, is charged to expense as it is incurred.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust capitalized AFUDC of $0.0 million and $0.1 million to property, plant and equipment for the year ended December 31, 2022 and 2021, respectively. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The undepreciated cost of utility gas property (land), less salvage value, is generally charged to accumulated depreciation at retirement. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The annual provisions for depreciation of property, plant and equipment are based on FERC-approved straight-line rates applied to the current month ending plant balances.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Long-Lived Assets</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust performs an evaluation for impairment whenever events or changes in circumstances indicate that the carrying amount of long-lived assets may not be recoverable. A long-lived asset is written down to fair value if the sum of its expected future undiscounted cash flows is less than its carrying amount.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Regulatory Assets and Liabilities</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The accounting for Overthrust’s regulated gas operations differs from the accounting for nonregulated operations in that Overthrust is required to reflect the effect of rate regulation in its financial statements. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">For regulated businesses subject to federal cost-of-service rate regulation, regulatory practices that assign costs to accounting periods may differ from accounting methods generally applied by non-regulated companies. When it is probable that FERC will permit the recovery of current costs through future rates charged to customers, these costs that otherwise would be expensed by non-regulated companies are deferred as regulatory assets. Likewise, regulatory liabilities are recognized when it is probable that FERC will require customer refunds through future rates or when revenue is collected from customers for expenditures that have yet to be incurred. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust evaluates whether or not recovery of its regulatory assets through future rates is probable as well as whether a regulatory liability due to customers is probable and makes various assumptions in its analyses. These analyses are generally based on orders issued by FERC, legislation and judicial actions, past experience, discussions with FERC and legal counsel, forecasted earnings, and considerations around the likelihood of impacts from events such as unusual weather conditions, extreme weather events and other natural disasters.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Generally, regulatory assets and liabilities are amortized into income over the recovery period authorized by FERC. If recovery of a regulatory asset is determined to be less than probable, it will be written off in the period such assessment is made. A regulatory liability, if considered probable, will be recorded in the period such assessment is made or reversed into earnings if no longer probable. See Note 5 for additional information.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Natural Gas Imbalances</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Natural gas imbalances occur when the physical amount of natural gas delivered from, or received by, a pipeline system or storage facility differs from the scheduled amount of natural gas to be delivered or received. Overthrust values these imbalances due to or from shippers at an appropriate period-end index price subject to the terms of its tariff. Imbalances are settled in-kind. Imbalances due from others are reported in Account 174-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Miscellaneous Current and Accrued Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> and imbalances owed to others are reported in Account 242-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Miscellaneous Current and Accrued Liabilities.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> See Note 8 for amounts related to affiliates. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Asset Retirement Obligations (AROs)</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust recognizes AROs at fair value as incurred or when sufficient information becomes available to determine a reasonable estimate of the fair value of future retirement activities to be performed, for which a legal obligation exists. These amounts are generally capitalized as costs of the related tangible long-lived assets. Since relevant market information is not available, fair value is estimated using discounted cash flow analyses. Quarterly, Overthrust assesses its AROs to determine if circumstances indicate that estimates of the amounts or timing of future cash flows associated with retirement activities have changed. AROs are adjusted when significant changes in the amounts or timing of future cash flows are identified. Overthrust reports accretion of AROs and depreciation on asset retirement costs associated with its natural gas pipeline assets as an adjustment to the related regulatory liabilities when revenue is recoverable from customers for AROs. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Prior to its acquisition by Southwest Gas, Overthrust recognized its estimated ARO liabilities associated with the interim replacement of pipeline components on its consolidated balance sheets. In association with the acquisition of Overthrust by Southwest Gas, management assessed existing estimates, determining that due to the indeterminant removal date, its expected use of the assets in place, and expectations around renewal of easements and rights of way, that these AROs were no longer reasonably estimable. The resulting change in estimate was not material to the consolidated financial statements</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Income Taxes</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust was acquired by Southwest Gas on December 31, 2021. Post-acquisition, Overthrust, along with other entities acquired, joined the Southwest Gas affiliate group and are included in the consolidated U.S. federal income tax return of Southwest Gas, effective December 31, 2021. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust participated in an intercompany tax sharing agreement with Southwest Gas and its subsidiaries. Current income taxes are based on Overthrust’s taxable income or loss and credits determined on a separate company basis. Under the agreement, if a subsidiary incurs a tax loss or earns a credit, recognition of current income tax benefits is limited to refunds of prior year taxes obtained by the carryback of net operating loss or credit or to the extent the net operating loss or credit is absorbed by the taxable income of other Southwest Gas consolidated group members. Otherwise, the net operating loss or credit is carried forward and is recognized as a deferred tax asset until realized.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Accounting for income taxes involves an asset and liability approach. Deferred income tax assets and liabilities are provided, representing future effects on income taxes for temporary differences between the bases of assets and liabilities for financial reporting and tax purposes. Overthrust establishes a valuation allowance when it is more-likely-than-not that all, or a portion, of a deferred tax asset will not be realized. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust recognizes positions taken, or expected to be taken, in income tax returns that are more-likely-than-not to be realized, assuming that the position will be examined by tax authorities with full knowledge of all relevant information. However, in order to preserve accumulated deferred income taxes to be used to reduce rate base or the cost of capital for regulatory purposes, income taxes payable, including amounts related to unrecognized tax benefits, are included in Account 236, </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Taxes Accrued</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, and amounts receivable from or amounts prepaid to tax authorities are included in Account 143, </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Accounts Receivable</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">. At December 31, 2022 and 2021 Overthrust had no unrecognized tax benefits. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 3. Income Taxes</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Judgment and the use of estimates are required in developing the provision for income taxes and reporting of tax-related assets and liabilities. The interpretation of tax laws involves uncertainty, since tax authorities may interpret the laws differently. Ultimate resolution of income tax matters may result in favorable or unfavorable impacts to net income and cash flows, and adjustments to tax-related assets and liabilities could be material.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust's operations, including accounting for income taxes, are subject to regulatory accounting treatment. For regulated operations, many of the changes in deferred taxes mandated by the 2017 Tax Reform Act represented amounts probable of collection from or return to customers, and were recorded as either an increase to a regulatory asset in account 182.3-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Regulatory Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or liability in account 254</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">-Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">. Those regulatory assets or liabilities created a temporary difference for which a deferred tax liability in account 282-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes-Property</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or 283-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes -Other</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or deferred tax asset in account 190-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> is required to be recognized consistent with the accounting guidance issued by the FERC Chief Accountant in Docket No. AI93-5-000 with respect to changes in tax law or rates. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust has recorded an estimate of the portion of excess deferred income tax amortization in 2022, and changes in estimates of amounts probable of collection from or return to customers. The reversal of these excess deferred income taxes will impact the effective tax rate, and may ultimately impact rates charged to customers. Overthrust has recorded the amortization of the excess and/or deficient accumulated deferred income taxes recorded in Account 254</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">-Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> by recording the offsetting entries to Account 410.1-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Provision of Deferred Income Tax</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or Account 411.1-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Provision for Deferred Income Tax-Credit</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, as required by the Uniform System of Accounts (“USofA”). The 2017 Tax Reform Act included provisions that stipulate how plant-related, or “protected”, excess deferred taxes may be amortized. The FERC has also provided guidance on the amortization of non-plant-related, or “unprotected” excess of deferred taxes. Overthrust is using the average rate assumption method (“ARAM”) to calculate the amortization of its excess accumulated deferred income taxes associated with plant-related temporary differences. Under the ARAM, the excess accumulated deferred income taxes will reverse at the weighted average rate at which the deferred taxes were built over the remaining book life of the property to which those deferred taxes relate. These reversal periods range from one to 28 years. For non-plant-related excess or deficient accumulated deferred income taxes, the balances will reverse when the underlying book or tax item to which those deferred taxes relate has been realized or settled. All unprotected differences reversed in prior years.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Details of income tax expense for the years ended December 31, 2022 and 2021 are as follows:</span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.130%"><tr><td style="width:1.0%"/><td style="width:49.983%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.305%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.952%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.305%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.955%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Current</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Federal</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">4.8</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">8.4</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">State</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">--</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">--</span></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Total Current</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">4.8</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">8.4</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Deferred</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Federal</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">2.9</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.7</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">State</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">--</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">--</span></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Total Deferred</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">2.9</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.7</span></td></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Provision for Income Taxes</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">7.7</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">9.1</span></td></tr></table></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The total statutory U.S. Federal income tax rate reconciles to the effective income tax rates as of December 31, 2022 and 2021 as follows:</span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.386%"><tr><td style="width:1.0%"/><td style="width:50.850%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.024%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.800%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.024%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.802%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:112%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:112%;text-decoration:underline">2021</span></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">U.S. Statutory Rate</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">21.00</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">21.00</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Increases (Reductions) Resulting from:</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Reversal of Excess Deferred Income Taxes</span></div></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(0.37)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(0.02)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Other</span></div></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(0.03)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">— </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Effective Tax Rate</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">20.60</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">20.98</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></div></td></tr></table></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Significant components of deferred income tax assets and liabilities as of December 31, 2022 and 2021 were as follows:</span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.386%"><tr><td style="width:1.0%"/><td style="width:50.850%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.332%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.492%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.332%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.494%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Deferred Income Tax Assets</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:9pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Excess Deferred Income Tax</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">3.6</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">3.7</span></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:9pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Intangible - Tax Goodwill</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">34.0</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">40.2</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:9pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Net Operating Loss</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">— </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.7</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Regulatory Asset - Fuel Gas Reimbursement Percentage</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">3.4</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">— </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Total Deferred Income Tax Assets</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">41.0</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">44.6</span></td></tr></table></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.386%"><tr><td style="width:1.0%"/><td style="width:50.850%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.332%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.492%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.332%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.494%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Deferred Income Tax Liabilities</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:13.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Plant and Equipment, Primarily Depreciation Method and Basis Differences</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.9</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.6</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:13.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Other</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.2 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">— </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Total Deferred Income Tax Liabilities</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">1.1</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.6</span></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The acquisition of Overthrust by Southwest Gas was a taxable transaction for U.S. federal and state income tax purposes. As a result, Southwest Gas obtained a step-up in the bases of the assets acquired for income tax purposes, without succeeding to the holding period, accounting methods, or historical income tax liabilities associated with Overthrust.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The acquisition by Southwest Gas resulted tax-deductible goodwill.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Because the book basis of goodwill was not pushed down to Overthrust, a deferred tax asset was recorded for the temporary difference which will be amortized over 15 years.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">During 2022, a measurement period adjustment was recorded resulting in $1.0 million less of deferred taxes that were recorded as a non-cash equity distribution.</span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust files U.S. federal and state income tax returns in jurisdictions with varying statutes of limitations. </span><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 4. Asset Retirement Obligations (ARO)</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">AROs represent legal obligations that result from laws, statutes, contracts and regulations related to the eventual retirement of certain of Overthrust’s long-lived assets. Prior to its change in parent, Overthrust reported an estimate of ARO liabilities associated with the interim replacement of pipeline components on its consolidated balance sheets, based on projected cash flows, including projected usage and maintenance of its assets. In connection with the acquisition of Overthrust by Southwest Gas, new management assessed the information available to develop an estimate. Factors assessed included indeterminant interim removal dates based on maintenance of the entity’s assets, management’s expected use of the assets in place, and expectations around renewal of easements and rights of way. On the basis of this evaluation, new management concluded that it did not possess information of sufficient precision to reasonably estimate the ARO liability. New management’s assessment is viewed as a change in estimate.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">Overthrust will monitor operational, legal, and strategic developments to identify if sufficient information becomes available to reasonably estimate these AROs in future reporting periods.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">At December 31, 2022, ARO balances were zero and no changes were noted during the year. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">The changes to Overthrust’s AROs during 2021 are as follows:</span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:82.886%"><tr><td style="width:1.0%"/><td style="width:72.867%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:4.285%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.548%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">AROs at December 31, 2019</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">1.9</span></div></td></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">     Accretion</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.1</span></div></td></tr></table></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:82.886%"><tr><td style="width:1.0%"/><td style="width:72.867%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:4.285%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.548%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">AROs at December 31, 2020</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">2.0</span></div></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Change in Estimate </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:6.5pt;font-weight:400;line-height:112%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(2.0)</span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">AROs at December 31, 2021</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:right"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">-</span></div></td></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7.8pt;font-weight:400;line-height:112%;position:relative;top:-4.2pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:400;line-height:112%">The decrease in AROs results in a corresponding decrease to property, plant and equipment, net of $1.2 million and an increase in regulatory</span></div><div><span style="color:#000000;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:400;line-height:112%"> liabilities of $0.8 million.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 5. Regulatory Matters</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">FERC regulates the transportation and sale for resale of natural gas in interstate commerce under the Natural Gas Act of 1938, as amended (NGA) and the Natural Gas Policy Act of 1978, as amended. Under the NGA, FERC has authority over rates, terms and conditions of services performed by Overthrust. FERC also has jurisdiction over siting, construction and operation of interstate natural gas pipeline facilities. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">In May 2021, Overthrust filed an application to request FERC authorization to add piping and valving modifications, all within five separate existing fenced station sites, and a new, approximately 900-foot-long pipeline loop between two existing fenced station areas, creating new capacity on Overthrust’s system from the Wamsutter interconnect, located in Sweetwater County, Wyoming, to the Kern River Gas Transmission Company (KRGT) at i) the Roberson interconnect, located in Lincoln County, Wyoming, and ii) the Painter interconnect, located in the Whitney Canyon area of Uinta County, Wyoming. Construction was completed and the project was placed in service November 2021 at a cost of $4.0 million.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">In September 2022, the FERC issued an order initiating an investigation, pursuant to section 5 of the NGA under Docket No. RP22-1118, to determine whether the rates currently charged by Overthrust are just and reasonable and setting the matter for hearing. The FERC directed Overthrust to file a cost and revenue study by December 6, 2022. Publicly noticed settlement conferences were held on January 11, 2023, February 16, 2023, and March 7 and 8, 2023. As a result of settlement negotiations, the parties reached an agreement in principle. On April 28, 2023, Overthrust filed a Stipulation and Settlement agreement (Settlement) with FERC (assigned Docket No. RP23-724), which resolves all issues raised by the FERC's section 5 proceeding and reflects an interrelated package of compromises among Overthrust and the active participants. Overthrust requested that the Settlement be certified by the Presiding Judge as uncontested and approved by the FERC without modification by August 31, 2023. If the settlement is approved, tariff rate changes (a reduction of approximately 7%) will be effective April 1, 2024. Also, on May 1, 2023, as part of the Settlement, Overthrust filed to include meter point groups as part of its priority of service under Docket No RP23-749. </span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 6. Commitments and Contingencies</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">As a result of issues generated in the ordinary course of business, Overthrust may be periodically involved in legal proceedings before various courts and subject to governmental examinations (including by FERC), inquiries and investigations. These legal proceedings and governmental examinations may involve demands for unspecified amounts of damages. The circumstances of any such legal proceedings and governmental examinations may change from time to time. Currently, management does not anticipate that any potential liability arising from such proceedings would have a material effect on the financial position, liquidity or results of operations of Overthrust. As of December 31, 2022 and 2021, Overthrust had no material legal proceedings or governmental examinations requiring the recognition of a liability.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 7. Market and Credit Risk</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Credit risk is the risk of financial loss if counterparties fail to perform their contractual obligations. In order to minimize overall credit risk, credit policies are maintained, including the evaluation of counterparty financial condition. In addition, counterparties may make available collateral, including letters of credit, payment guarantees, or cash deposits. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust’s largest customers in 2022 include Rockies Express Pipeline LLC, Citadel Energy Marketing LLC, and MountainWest Pipeline LLC, and in 2021 include Rockies Express Pipeline LLC, Citadel Energy Marketing LLC, and Wyoming Interstate Company, LLC</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:112%">.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> The top three customers provided approximately 67% and 68% of Overthrust’s 2022 and 2021 transportation revenue, respectively.</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Management believes, based on credit policies, it is unlikely that a material adverse effect on financial position, results of operations or cash flows would occur as a result of counterparty nonperformance.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 8. Related-Party Transactions</span></div><div style="margin-top:10pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust engages in related-party transactions with other MountainWest companies (affiliates) in the normal course of business. Overthrust’s receivable and payable balances with affiliates are settled based on contractual terms or on a monthly basis, depending on the nature of the underlying transactions. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust provides transportation services to affiliates.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Regarding the sale of Overthrust from Dominion Energy to Southwest Gas, Respondent chose to disclose all services received from and provided to Dominion Energy subsidiaries as affiliate transactions for the year ended December 31, 2021, even though that relationship was terminated on December 31, 2021. Dominion Energy Services, Inc. (DES) and other Dominion affiliates provided accounting, legal, finance and certain administrative and technical services to Overthrust. MountainWest Pipeline Services, Inc. (MWPS) provides services to Overthrust, which primarily consist of administrative, management, marketing, financial and operational services. Beginning in 2022, Southwest Gas Holdings also provides various services to Overthrust such as tax, legal, and various other technical or administrative services. The amount of these services follow:</span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:60.595%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:1.970%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.981%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:1.970%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.984%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Year Ended December 31,</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Sales of natural gas transportation services to affiliates</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">5.7</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">4.6</span></td></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Goods and services provided by affiliates to Overthrust</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:112%">(1)</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">15.6</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">5.7</span></td></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:112%"> (1) Includes capitalized expenditures of $0.3 million and $0.4 million for the years ended December 31,2022 and 2021, respectively.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The following table presents affiliated natural gas imbalances reflected in Overthrust’s Comparative </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Balance Sheet: </span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:60.595%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:1.970%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.981%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:1.970%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.984%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">At December 31,</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(millions)</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Gas Imbalances receivable from affiliates</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">13.8</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></div></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">0.1</span></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">As of December 31, 2022 and 2021, Overthrust had a long-term note in the amount of $55.0 million payable to MountainWest Pipeline. Interest expense related to this borrowing totaled $1.9 million in the years ended December 31, 2022 and 2021.</span></div>

disclosure_of_subsequent_events_text_block:
  <div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 9. Subsequent Events</span></div><div style="margin-top:10pt;text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Overthrust has evaluated the impact of events occurring after December 31, 2022, up to March 31, 2023, the date that the MountainWest Pipeline Consolidated GAAP financial statements were issued for recognition or disclosure and has updated such evaluation for disclosures purposes through June 14, 2023. These financial statements include all necessary adjustments and disclosures resulting from these evaluations. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">On February 14, 2023, the Williams Companies Inc, (“Williams”) closed on the acquisition of MountainWest Pipelines Holding Company from Southwest Gas Holdings, Inc.</span></div>


entity_id: C000583
filing_name: Guardian_Pipeline,_L.L.C._form2_Q4_1680232444
publication_time: 2023-03-30 23:14:04.000000
start_date: 2022-01-01
end_date: 2022-12-31
disclosure_of_unsettled_rate_proceedings_text_block:
  <div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">F.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">    </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">GUARDIAN PIPELINE, L.L.C. RATE CASE</span></div><div><span><br/></span></div><div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In April 2022, the Federal Energy Regulatory Commission commenced an investigation of Guardian Pipeline L.L.C.'s rates pursuant to Section 5 of the Natural Gas Act in Docket No.RP22-725-000. Guardian filed an agreed-upon Stipulation and Offer of Settlement with the FERC in October 2022, which was approved by the FERC in February 2023.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We anticipate that the Settlement will result in a decrease in Guardian's annual revenue, compared to 2022, by 5% in the period April 1, 2023 through March 31, 2025, with an additional decrease of 10% in the period April 1, 2025 through March 31, 2026, and a final additional decrease of 4% in the period April 1, 2026, and forward.</span></div>

disclosure_of_significant_contingent_assets_or_liabilities_text_block:
  <div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">E.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">    </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">COMMITMENTS AND CONTINGENCIES</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Environmental Matters and Pipeline Safety</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> - The operation of pipelines for the transportation of natural gas is subject to numerous and complex laws and regulations pertaining to health, safety and the environment. As an owner and operator of these pipelines, we must comply with laws and regulations that relate to air and water quality, hazardous and solid waste management and disposal, cultural resource protection and other environmental and safety matters. The cost of planning, designing, constructing and operating pipelines must incorporate compliance with these laws and regulations. Failure to comply with these laws and regulations may trigger a variety of administrative, civil and potentially criminal enforcement measures, including the assessment of monetary penalties, the imposition of remedial requirements and the issuance of injunctions or restrictions on operations or construction. Management is not aware, based on currently known information, of any </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">noncompliance with these laws and regulations that would have a material adverse effect on our results of operations, financial condition or cash flows. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Legal Proceedings </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">- Although we may, from time to time, be involved in litigation and claims arising out of the normal course of our operations, we are not currently a party to any litigation or claims, or aware of any such litigation or claims contemplated to be brought against us, that would have a material adverse effect on our results of operations, financial condition or cash flows. In addition, management is not aware, based on currently known information, of any legal or governmental proceedings against us, or contemplated to be brought against us, under the various environmental protection statutes to which we are subject that would have a material adverse effect on our results of operations, financial condition or cash flows.</span></div>


entity_id: C000095
filing_name: Equitrans,_L.P._form2_Q4_1680904642
publication_time: 2023-04-07 17:57:22.000000
start_date: 2022-01-01
end_date: 2022-12-31
disclosure_of_important_disclosures_regarding_the_financial_statements_text_block:
  <div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:6.01pt">Description of Business</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">Equitrans, L.P. (the Company or Equitrans) is a Pennsylvania limited partnership that owns and operates an interstate natural gas pipeline system subject to the jurisdiction of the Federal Energy Regulatory Commission (FERC) pursuant to the Natural Gas Act. The Company is owned 97.25% by Equitrans Investments, LLC and 2.75% by Equitrans Services, LLC, which are both wholly owned subsidiaries of EQM Midstream Partners, LP (EQM). EQM is a wholly owned subsidiary of Equitrans Midstream Corporation (ETRN), a C-Corporation.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">References in these financial statements to ETRN refer collectively to Equitrans Midstream Corporation and its consolidated subsidiaries.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Operational support for Equitrans is provided by ETRN, and ETRN’s employees manage and conduct the Company’s daily business operations.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:6.01pt">Significant Accounting Policies</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Basis of Presentation</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">These financial statements were prepared in accordance with the accounting requirements of the FERC as set forth in its Uniform System of Accounts (USofA) and published accounting releases, which is a comprehensive basis of accounting other than generally accepted accounting principles (GAAP). Differences between GAAP and the financial statements presented herein include certain differences related to income taxes, purchase accounting and </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">the classification of certain accounts on the balance sheets, statements of income and statements of cash flows.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The preparation of financial statements in accordance with the accounting requirements of the FERC as set forth in its USofA and published accounting releases requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Properties, Depreciation and Depletion</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company’s property, plant and equipment are stated at depreciated cost. The cost of property additions, replacements and improvements capitalized includes labor, material and overhead. Maintenance projects that do not increase the overall life of the related assets are expensed as incurred. In the ordinary course of business, the cost of property retired, plus removal costs less salvage, is charged to accumulated depreciation. For significant asset disposals, the cost of property retired, plus removal costs are netted against the asset's accumulated depreciation and the residual amount is recorded as a gain or loss on disposition.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Depreciation is recorded using composite rates on a straight-line basis over the estimated useful life of the assets. The overall rate of depreciation for the years ended December 31, 2022 and 2021 was approximately 2.75% and 2.74% respectively. The Company estimates the pipelines have useful lives ranging from 20 years to 65 years and the compression structures and equipment have useful lives ranging from 30 to 50 years. Depreciation rates are re-evaluated each time the Company files a NGA Section 4 base rate case with the FERC for a change in its rates.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">Whenever events or changes in circumstances indicate that the carrying amount of long-lived assets may not be recoverable, the Company reviews its long-lived assets for impairment by first comparing the carrying value of the assets to the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the assets. If the carrying value exceeds the sum of the assets' undiscounted cash flows, the Company estimates an impairment loss equal to the difference between the carrying value and fair value of the assets.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Allowance for Funds Used During Construction (AFUDC)</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The carrying costs for the construction of long-lived assets are capitalized and amortized over the related assets’ estimated lives. The capitalized amount for construction includes an interest cost (the interest component) and a designated cost of equity (the equity component) for financing these assets. The FERC prescribes a formula to be used for computing AFUDC. The AFUDC rate applicable to equity funds was 2.70% and 4.07% for the years ended December 31, 2022 and December 31, 2021, respectively. The AFUDC rate for borrowed funds was 3.92% and 3.06% for the years ended December 31, 2022 and December 31, 2021, respectively. AFUDC applicable to equity funds capitalized is included in other income and amounted to $0.3 million and $0.3 million during the years ended December 31, 2022 and </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">December 31, 2021, respectively. AFUDC applicable to borrowed funds is included as a reduction of other interest charges and amounted to $0.4 million and $0.2 million for the years ended December 31, 2022 and December 31, 2021, respectively.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Income Taxes</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">ETRN and its wholly-owned subsidiaries file a consolidated federal tax return. The Company’s income tax payable accrued are not settled through cash with ETRN. As a result, during the first quarter of 2022, the Company settled a balance of $58.9 million through equity which represented income taxes payable as of December 31, 2021. During the first quarter of 2021, the Company settled a balance of $57.3 million through equity, which represented income taxes payable as of December 31, 2020. The statement of cash flows presents the impact of these settlements as non-cash transactions. ETRN is subject to examination for the years ended December 31, 2022 and December 31, 2021.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company is not subject to federal or state income taxes but records a provision for income taxes for regulatory purposes under the FERC Revised Policy Statement on Income Tax Allowances.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">As a partnership, the Company is not a taxable entity for income tax purposes, however, amounts equivalent to current and deferred income tax expense based on corporate tax rates are presented in the accompanying financial statements since income taxes are a cost component for the Company’s currently effective rates. The Company uses the liability method of accounting for income taxes which requires, among other things, provisions for all temporary differences between the financial basis and the tax basis in the Company’s assets and liabilities and adjustments to the existing deferred tax balances for changes in tax rates. Where deferred tax liabilities or assets will be passed through to customers in regulated rates, the Company establishes a corresponding regulatory asset or liability for the increase or decrease in future revenues that will result when the temporary differences reverse.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Natural Gas Imbalances</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Natural gas imbalances occur when the actual amount of natural gas delivered from a pipeline system or storage facility differs from the amount of natural gas scheduled. The Company values these imbalances due to or from shippers and operators at current index prices. Imbalances are settled in-kind, subject to the terms of the Company’s tariff.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Imbalances due from others are reported on the balance sheets as miscellaneous current and accrued assets. Imbalances owed to others are reported on the balance sheets as miscellaneous current and accrued liabilities. In addition, the Company classifies all imbalances as current as the Company expects to settle them within a year.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Regulatory Accounting</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">The Company’s regulated operations consist of interstate transmission, gathering and storage operations subject to regulation by the FERC. Rate regulation provided by the FERC is designed to enable the Company to recover the costs of providing the regulated services plus </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">an allowed return on invested capital. The application of regulatory accounting allows the Company to defer expenses and income on its balance sheets as regulatory assets and liabilities when it is probable that those expenses and income will be allowed in the rate setting process in a period different from the period in which they would have been reflected in the statements of operations for a non-regulated company. The deferred regulatory assets and liabilities are then recognized in the statements of operations in the period in which the same amounts are reflected in rates. The amounts deferred are to be recovered over the regulated period. The amounts deferred in the balance sheets relate primarily to the accounting for income taxes, AFUDC, transmission retainage tracker on the mainline system, transmission and storage retainage trackers on the AVC system and post-retirement benefit costs. The Company believes that it will continue to be subject to rate regulation that will provide for the recovery of deferred costs.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Revenue Recognition</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On January 1, 2018, the Company adopted the new GAAP guidance on revenue from contracts with customers using the modified retrospective transition method for all contracts that were in effect on the date of adoption. The adoption did not result in any changes to the Company’s historical revenue recognition, and the Company did not have any cumulative impact adjustment on the date of adoption. While FERC has not adopted the GAAP revenue recognition guidance and disclosure requirements, there remains no difference between the revenue recognized under GAAP and FERC due to the application of the right to invoice practical expedient.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Revenue is measured based on considerations specific in a contract with a customer. The Company recognizes revenue under transmission and storage and gathering services contracts when it satisfies certain performance obligations, as discussed below.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">The Company provides transmission and storage and gathering services in two manners: firm service or interruptible service. Firm service is provided under firm contracts, which are contracts for transmission or storage services that generally obligate the customer to pay a fixed, monthly charge to reserve an agreed upon amount of pipeline or storage capacity regardless of the capacity used by the customer during each month. Volumetric-based fees can also be charged under firm contracts for each firm volume transported or stored, as well as for volumes transported or stored in excess of the firm contracted volume, if storage capacity exists. Interruptible service contracts include volumetric-based fees, which are charges for the volume of gas transported, stored or gathered and generally do not guarantee access to the pipeline or storage facility. Firm and interruptible contracts can be short- or long-term in duration. Firm and interruptible transmission and storage service contracts are billed at the end of each calendar month, with payment typically due within 10 days. Firm and interruptible gathering contracts are billed on a one-month lag, with payment typically due within 21 days. Revenue related to gathering services provided but not yet billed is estimated each month. These estimates are generally based on contract data, preliminary throughput and allocation measurements.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">Under a firm contract, the Company has a stand-ready obligation to provide the service over the life of the contract. The performance obligation for firm reservation fee revenue is satisfied over time as the pipeline capacity is made available to the customer. As such, the Company recognizes firm reservation fee revenue evenly over the contract period using a time-elapsed </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">output method to measure progress. The performance obligation for volumetric-based fee revenue is generally satisfied upon the Company's monthly billing to the customer for volumes transported, stored or gathered during the month. The amount billed generally corresponds directly to the value of the Company's performance to date as the customer obtains value as each volume is transported, stored or gathered.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">For all contracts, the Company allocates the transaction price to each performance obligation based on the estimated relative standalone selling price.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Contract Balances</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Contract assets and contract liabilities are the result of timing differences between revenue recognition, billings and cash collections. As of December 31, 2022 and 2021, contract assets were $0.8 million and $1.3 million, respectively. As of December 31, 2022 and 2021, the Company had no contract liabilities.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Contingencies</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company is involved in various regulatory and legal proceedings that arise in the ordinary course of business. A liability is recorded for contingencies based upon the Company’s assessment that a loss is probable and that the amount of the loss can be reasonably estimated. The Company considers many factors in making these assessments, including history and specifics of each matter. Estimates are developed in consultation with legal counsel and are based upon the analysis of potential results.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Asset Retirement Obligations</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Although individual assets will be replaced as needed, the Company’s transmission and storage system and its gathering system will continue to exist for an indefinite useful life. As such, there is uncertainty around the timing of any asset retirement activities. As a result, the Company determined that there is not sufficient information to make a reasonable estimate of the asset retirement obligations for the remaining assets as of December 31, 2022 and 2021.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Cash and Cash Equivalents</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company considers all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents. Interest earned on cash equivalents is included as a reduction to interest expense in the accompanying statement of income.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Trade and Other Receivables</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Trade and other receivables are stated at their historical carrying amount. Judgment is required to assess the ultimate realization of accounts receivable, including assessing the probability of collection and the creditworthiness of customers. Based upon management's assessments, allowances for credit losses/doubtful accounts of $1.0 million and $0.4 million were provided at December 31, 2022 and 2021, respectively.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Fair Value of Financial Instruments</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">The Company has categorized its assets and liabilities disclosed at fair value into a three-level fair value hierarchy, based on the priority of the inputs to the valuation technique. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The carrying value of cash and cash equivalents, accounts receivable, amounts due to/from associated companies and accounts payable approximate fair value due to the short maturity of the instruments; these are considered Level 1 fair values. As the Company’s term note executed under the intercompany Master Financing Agreement with Equitrans Investments, LLC was not actively traded, the fair value of the debt was a Level 2 fair value measurement which was estimated using a standard industry income approach model which utilizes a discount rate based on market rates for debt with similar remaining time to maturity and credit risk. The Company's term note was repaid on March 17, 2022. See Note Debt.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:120%">Recently Issued Accounting Standards</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">There are no recently issued accounting standards that are applicable to the Company.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:6.01pt">Rate and Other Regulatory Matters</span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On April 1, 2015, the Company submitted a request to use pre-filing procedures under Docket No. PF15-22 for its Equitrans Expansion Project. The project will consist of the replacement and expansion of the 4,800 horsepower Pratt Compressor Station with the 31,300 horsepower Redhook Compressor Station in Greene County, Pennsylvania; approximately 3 miles of 30-inch pipe between the Redhook Compressor Station and the existing H-302 pipeline in Greene County, Pennsylvania; approximately 4 miles of 20-inch pipe in Allegheny and Washington Counties, Pennsylvania between EQM Gathering Opco’s Applegate Gathering System and Equitrans’ existing H-148 pipeline; the new Webster interconnect to deliver natural gas volumes into Mountain Valley Pipeline, LLC’s proposed pipeline in Wetzel County, West Virginia; and approximately 1 mile of 6 to 24-inch pipeline to move gas to the new Redhook Compressor Station and the Webster Interconnect, as well as other ancillary facilities. The Company filed its application under Sections 7(b) and 7(c) of the Natural Gas Act on October 27, 2015, and FERC issued the Final Environmental Impact Statement on June 23, 2017, and the Company received its certificate on October 13, 2017. On November 13, 2017, the Company submitted its Implementation Plan for the Project, removing the approximately 4 miles of 20-inch pipe in Allegheny and Washington Counties, Pennsylvania and one turbine at the Redhook Compressor Station, as well as re-routing the pipe between the Redhook Compressor Station and the existing H-302 pipeline in Greene County, Pennsylvania such that the terminus of the pipeline will be the Jefferson Compressor Station instead of the H-302 pipeline. The Company commenced construction on January 29, 2018 and placed the modifications to the existing Jefferson Compressor Station, the newly constructed Redhook Compressor Station, and the H-305 and H-316 Pipelines into service on July 31, 2019. The M-80 and H-158 were placed into service on August 29, 2019. The Company experienced delays as a result of extra safety precautions taken due to the age of the building and </span><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">equipment, safeguards taken with removal of the compressor building to ensure safety in direct vicinity of remaining equipment at the station and inefficiencies resulting from newly developed processes related to the COVID-19 pandemic. On October 7, 2020, the Company completed the abandonment of the Pratt Compressor Station facilities. The remaining project facilities (the Webster Interconnect, Mobley Tap, and H-319 Pipeline in Wetzel County, West Virginia) are complete and awaiting service. The Company has not requested authorization to commence service on those facilities because they are directly associated with natural gas deliveries to the pending Mountain Valley Pipeline Project. The project facilities are targeted to be fully in–service when the Mountain Valley Pipeline Project is placed into service. However, because of the delays in the construction of the Mountain Valley Pipeline Project, FERC approved an extension of time, until October 13, 2022. The Company’s request for further extension of time to align with the Mountain Valley Pipeline Project's approved deadline remains pending. No additional construction is necessary in order to place the remaining project facilities into service.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On September 21, 2018, the Company submitted an application under Docket No. CP18-549 for its Swarts Complex Abandonment Project under Section 7(b) of the Natural Gas Act. The Project consists of abandoning eighteen injection and withdrawal wells in the Swarts Complex over an approximate ten and one-half year period. On March 20, 2019, FERC issued an order granting the Company’s application to abandon the wells. The Company abandoned the first of the wells on March 21, 2019, during the third quarter of 2019, the Company recorded $0.1 million in loss on disposition of property for the abandonment of one subject well. The second Swarts well was abandoned on June 17, 2020; during the first quarter of 2021, the Company recorded a $0.4 million loss on disposition of property for the abandonment of the one subject well. The third Swarts well was abandoned on April 28, 2021. During the third quarter of 2021, the Company recorded a less than $0.1 million loss on disposition of property for abandonment of the third Swarts well. Four Swarts wells were abandoned during November 2021; during the second quarter of 2022, the Company recorded a $0.3 million loss on disposition for abandonment of the four Swarts wells. The Company abandoned the eighth Swarts well on June 7, 2022 and recorded a $0.1 million loss on disposition of this well during the third quarter of 2022. The Company abandoned the ninth Swarts well on October 31, 2022 and recorded a less than $0.1 million loss on disposal of this well during the fourth quarter of 2022. On April 12, 2022, the Company submitted an application amendment under Docket Nos. CP18-549-001 and CP22-162-000. The amended project consists of the Company proposing to plug and abandon five of the remaining wells (well numbers 603791, 603792, 603793, 603795 and 603797) and associated facilities rather than abandoning the wells by sale to CONSOL Energy LLC. The Company received its Order Approving Amendment to Abandonment Authorization on January 26, 2023.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">On October 13, 2017, Brooke County Access I, LLC submitted a request to use pre-filing procedures under Docket No. PF18-2 to construct approximately 16 miles of 16- to 20-inch diameter pipeline in Washington County, Pennsylvania and Brooke County, West Virginia to serve a proposed power facility. On February 1, 2019, the Company submitted a letter to FERC to notify the Commission that it had taken over the project in its entirety renamed the Tri-State Corridor Project. On May 31, 2019, the Company submitted an application under Docket No. CP19-473 for its Tri-State Corridor Project. As filed, the project will consist of approximately 16.7 miles of 16-inch diameter pipeline, three new interconnects in Washington County, Pennsylvania with Rover Pipeline LLC and two non-jurisdictional facilities, and a new interconnect in Brooke County, West Virginia with the proposed power facility. The Company is </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">working with the project shipper on timelines for project completion. On July 1, 2020, FERC suspended its review of the application period pending the filing of Rover Pipeline LLC’s application. On June 27, 2022, the Company withdrew its application. The Company and project shipper continue to coordinate pursuant to the executed precedent agreement for the project, and the Company will re-file as appropriate.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On December 10, 2018, the Company submitted an application under Docket No. CP19-24-000 for its Plug and Abandon Hunters Cave 3675 Storage Well Project under the FERC’s prior notice regulations. The project consists of the plugging and abandonment of an injection and withdrawal well in the Hunters Cave Storage Field due to safety concerns.</span><span style="color:#000000;font-family:'Calibri',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">Due to delays in securing the necessary permit, the Company was not able to complete the plugging and abandonment by February 19, 2020, the one year deadline under the FERC’s prior notice regulations.</span><span style="color:#000000;font-family:'Calibri',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On October 22, 2020, the Company resubmitted the application under Docket No. CP21-8. The Company completed the abandonment on December 13, 2021.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On April 30, 2020, the Company submitted under Docket No. CP20-312, an application to abandon the Equitrans Gathering facilities and services, consisting of approximately 191 miles of certificated gathering lines, 9 certificated compressor station units, approximately 736 miles of non-certificated gathering lines, 9 non-certificated compressor station units, and any appurtenant facilities. The Company requested abandonment authority by July 31, 2020, and plans to abandon by sale and, if that is not successful, in place within one year of FERC’s approval of its application. On March 11, 2021, the Company entered into a purchase and sale agreement pursuant to which it will sell the 27 mile M-73 certified gathering pipeline located in Greene and Fayette Counties, Pennsylvania. On September 23, 2021, the Company entered into a purchase and sale agreement pursuant to which it will sell the remaining Equitrans Gathering facilities, except for 2 units at the West Union Compressor Station, which will be abandoned in place. On June 17, 2022, FERC issued its order granting abandonment in part for certain of the facilities and accepting notice of termination of non-jurisdictional gathering service. FERC did not act regarding the Company’s Taylor County Field gathering facilities. On July 15, 2022, the Company completed the sale of the M-73 gathering pipeline. On July 18, 2022, the Company filed a request for rehearing regarding the FERC’s June 17, 2022 order. On August 12, 2022, Big Dog Midstream LLC filed for a Limited Jurisdiction Certificate of Public Convenience and Necessity under Docket No. CP22-497 to provide jurisdictional service on the Taylor County Field gathering facilities, and, on August 15, 2022, the Company filed a response to FERC’s show cause order. On December 16, 2022, FERC issued its order in which the Company is granted permission and approval to abandon its Taylor County Field facilities by sale to Big Dog Midstream LLC or another holder of a limited jurisdiction certificate for ancillary interstate transportation service on the facilities. The Company expects to complete the abandonments during the second quarter of 2023.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On September 29, 2020, the Company submitted under Docket No. CP20-531 an application to sell base gas in the existing Mobley Storage Field under FERC’s prior notice regulations. The activity was deemed authorized effective December 13, 2020. The Company sold 360,000 Dth of base gas during the first quarter of 2021.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On June 2, 2021, the Company submitted under Docket No. CP21-455 an application to plug and abandon Well 3660 under FERC’s prior notice regulations. The project consists of the plugging and abandonment of an injection and withdrawal well in the Pratt Storage Field due to </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">safety concerns. Protests to the Company’s request were filed in that docket. The Company is currently working to address the protests.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On December 21, 2021, the Company submitted under Docket No. CP22-24 an application to convert two observation wells in the Truittsburg Storage Field to injection/withdrawal wells and to sell the excess cushion gas resulting from the conversion. The project consists of installing approximately 1,119 feet of well lines and valves. FERC issued the Environmental Assessment for the project on March 7, 2022, and the Company received its Certificate Authorization on November 10, 2022.The Company completed the project on March 16, 2023.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">On January 28, 2022, the Company submitted under Docket No. CP22-44 for its Ohio Valley Connector Expansion (OVCX) Project under Section 7(c) of the Natural Gas Act. The project consists of acquiring the Cygrymus Compressor Station and adding two turbines to the system, adding a compressor unit at the Corona Compressor Station, adding a compressor unit at the Plasma Compressor Station, constructing approximately 5.5 miles of pipeline, installing a deep anode groundbed and rectifier for cathodic protection, and adding ancillary facilities. FERC issued the Final Environmental Impact Statement for the project on January 20, 2023. The Company is targeting to complete construction in the second quarter of 2024.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On December 8, 2022, the Company submitted under Docket No. CP23-23 its application for abandonment of Comet Compressor Station Unit 5 under FERC’s prior notice regulations. FERC issued the Environmental Assessment for the Project on December 19, 2022. The activity was deemed authorized effective February 14, 2023. The Company completed the abandonment on March 7, 2023.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">On November 6, 2022, the Company became aware of natural gas venting from one of the storage wells, well 2244, at the Company’s Rager Mountain natural gas storage facility (Rager Mountain facility), located in Jackson Township, Cambria County, Pennsylvania (the Storage Incident). The venting of natural gas from well 2244 was halted on November 19, 2022. The Pennsylvania Department of Environmental Protection (the PADEP) and the Pipeline and Hazardous Materials Safety Administration of the United States Department of Transportation (the PHMSA) are investigating the incident and the Company is cooperating in such investigations. On December 7 and 8, 2022, the Company received orders from the PADEP alleging, in connection with the venting incident and other wells at the Rager Mountain facility, violations of certain state laws and requiring certain actions. The December 8, 2022 order also prohibits the Company from injecting natural gas into the storage wells at the Rager Mountain facility. The Company disputed aspects of the applicable orders, and on January 5, 2023, the Company appealed each of the orders to the Commonwealth of Pennsylvania Environmental Hearing Board. On December 29, 2022, the PHMSA issued the Company a Notice of Proposed Safety Order (NOPSO) which includes proposed remedial requirements related to the Storage Incident. The Company is working with the PHMSA on the scope of the proposed corrective measures listed in the NOPSO and has commenced certain of the measures, including engaging a third party specialist firm to undertake a root cause analysis.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:6.01pt">Related-Party (Associated Companies) Transactions</span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">In the ordinary course of business, the Company has transactions with affiliated companies.</span><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company received direct charges for certain services provided by ETRN and allocated charges for a portion of the expenses incurred by ETRN and its subsidiaries for certain indirect costs that are shared by the Company. For the years ended December 31, 2022 and 2021, related party expenses recorded by the Company for these services and allocated charges were $55.4 million and $53.8 million, respectively.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The accompanying balance sheets include amounts due from associated companies of $1.7 million and $3.1 million as of December 31, 2022 and December 31, 2021, respectively. Amounts due to associated companies as of December 31, 2022 and December 31, 2021 totaled $25.8 million and $24.2 million, respectively.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Employees of ETRN operate the Company's assets. ETRN charges the Company for the payroll and benefit costs associated with employees and carries the obligations for other employee-related benefits in its financial statements. The Company is allocated a portion of ETRN’s defined benefit pension plan and retiree medical life insurance liability for the retirees of the Company based on an actuarial assessment of that liability. Refer to Note Pension and Other Postretirement Benefit Plans for additional details.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:6.67pt">Income Taxes</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">As described in the Significant Accounting Policies, the Company is not a taxable entity for income tax purposes, but for regulatory accounting purposes the following information is presented. When income tax expense is recorded the offset is to current and deferred income tax accounts on the balance sheet. Deferred income tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities. Where deferred tax liabilities will be passed through to customers in regulated rates, the Company establishes a corresponding regulatory asset for the increase in future revenues that will result when the temporary differences reverse.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Income tax expense is summarized as follows ($ in millions):</span></div><div><span><br/></span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.577%"><tr><td style="width:1.0%"/><td style="width:65.309%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:15.386%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.416%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:15.389%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Year Ended December 31,</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">2022</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">2021</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Current</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Federal</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">46.8 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">45.0 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">State</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">15.6 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">14.2 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Subtotal</span></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">62.4 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">59.2 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Deferred</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Federal</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">5.8 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">4.2 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">State</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(9.5)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">— </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Subtotal</span></td><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(3.7)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">4.2 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Total</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">58.7 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">63.4 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The following table summarizes differences between income tax expense and amounts computed at the applicable federal statutory rate on pre-tax income for the years ended December 31, 2022 and 2021 ($ in millions):</span></div><div><span><br/></span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.577%"><tr><td style="width:1.0%"/><td style="width:65.309%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:15.386%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.416%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:15.389%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Year Ended December 31,</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">2022</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">2021</span></td></tr><tr style="height:12pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Tax at statutory rate</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">53.7 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">52.0 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">State income taxes</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">4.8 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">11.1 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Permanent basis differences</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">0.2 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">0.3 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Income tax expense</span></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">58.7 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">63.4 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr style="height:12pt"><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Effective tax rate</span></td><td colspan="2" style="border-bottom:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">22.9 </span></td><td style="border-bottom:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">%</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">25.6 </span></td><td style="border-bottom:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">%</span></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">The Company’s effective income tax rate for the year ended December 31, 2022 was 22.9% compared to 25.6% for the year ended December 31, 2021. The decrease in the effective income tax rate from 2021 to 2022 was primarily due to a reduction of the future Pennsylvania Income Tax Rates and its net impact of $9.2 million on the Company's net deferred tax liabilities.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The following table summarizes the source and tax effects of temporary differences between financial reporting and tax bases of assets and liabilities ($ in millions):</span></div><div><span><br/></span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.851%"><tr><td style="width:1.0%"/><td style="width:67.901%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.101%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.396%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.102%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Year Ended December 31,</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">2022</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">2021</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Deferred income taxes:</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Total deferred income tax liabilities (account 282 and 283)</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">243.3 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">249.2 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Total deferred income tax assets (account 190)</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(8.4)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(8.1)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Total net deferred income tax liabilities</span></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">234.9 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">241.1 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Total deferred income tax liabilities (assets)</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Plant basis</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">229.8 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">233.4 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Regulatory temporary differences</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">13.5 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">15.8 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Other</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(8.4)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(8.1)</span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Total</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">234.9 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">241.1 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:5.34pt">Debt</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">On September 27, 2013, the Company entered into an intercompany Master Financing Agreement with Equitrans Investments, LLC. Subsequent to this agreement, the Company executed a 10 year, $100 million term note with an interest rate of 5.25% subject to the terms of the Master Financing Agreement (the $100 million Term Note). On March 17, 2022, the Company repaid with cash on hand the outstanding principal and related accrued interest of the $100 million Term Note. At December 31, 2021, the Company had $100 million outstanding classified as advances from associated companies for the $100 million Term Note. The fair value of the $100 million Term Note was $105.7 million as of December 31, 2021, and fair value was measured using Level 2 inputs as described in Note Significant Accounting Policies.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">Interest expense on long-term debt amounted to $1.1 million and interest paid on long-term debt amounted to $1.6 million for the year ended December 31, 2022. Interest expense and interest paid on long-term debt amounted to $5.3 million for the year ended December 31, 2021.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">For the years ended December 31, 2022 and December 31, 2021, the Company had no short-term financing obligations.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:6.01pt">Commitments and Contingencies</span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">The Company is subject to federal, state, and local environmental laws and regulations. These laws and regulations, which are constantly changing, can require expenditures for remediation and may in certain instances result in assessment of fines. The Company has established procedures for ongoing evaluation of its operations to identify potential environmental exposures and assure compliance with regulatory policies and procedures. The estimated costs associated with identified situations that require remedial action are accrued. However, certain of these costs are deferred as regulatory assets when recoverable through regulated rates. Ongoing expenditures for compliance with environmental laws and regulations, including </span><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">investments in plant and facilities to meet environmental requirements, have not been material. Management believes that any such required expenditure will not be significantly different in either nature or amount in the future and does not know of any environmental liabilities that will have a material effect on the Company’s financial position, results of operations, or liquidity.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">In the ordinary course of business, various legal and regulatory claims and proceedings are pending or threatened against the Company. While the amounts claimed may be substantial, the Company is unable to predict with certainty the ultimate outcome of such claims and proceedings. The Company accrues legal or other direct costs related to loss contingencies when actually incurred. The Company has established reserves it believes to be appropriate for pending matters and after consultation with counsel and giving appropriate consideration to available insurance, the Company believes that the ultimate outcome of any matter currently pending against the Company will not materially affect its business, financial position, results of operations or liquidity.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:11.34pt">Concentrations of Credit Risk</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company’s gathering and transmission and storage operations provide services to utility and end-user customers located in the northeastern United States. The Company also provides services to customers engaged in commodity procurement and delivery, including large industrial, utility, commercial and institutional customers and certain marketers primarily in the Appalachian and mid-Atlantic regions. For the years ended December 31, 2022 and 2021, EQT Corporation and its subsidiaries accounted for approximately 50% and 52% of total operating revenues, respectively. Peoples Natural Gas Company LLC and its affiliates accounted for approximately 27% of total operating revenues in both periods.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Approximately 54% of accounts receivable balances of $43.1 million and $41.4 million as of December 31, 2022 and 2021, respectively, represent amounts due from marketers. The Company manages the credit risk of sales to marketers by limiting the Company’s dealings to those marketers meeting specified criteria for credit and liquidity strength and by actively monitoring these accounts. The Company may request a letter of credit, guarantee, performance bond or other credit enhancement from a marketer in order for that marketer to meet the Company’s credit criteria. The Company did not experience any significant defaults on accounts receivable during the years ended December 31, 2022 and 2021.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:8pt">Cash and Cash Equivalents</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Non-cash activity during the year ended December 31, 2022 excluded from the Statement of Cash Flows was comprised of the following ($ in millions):</span></div><div><span><br/></span></div><div style="padding-left:36pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:69.494%"><tr><td style="width:1.0%"/><td style="width:84.553%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.247%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Settlement of income taxes payable</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">58.9 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Settlement of deferred tax liabilities</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">1.0 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Non-cash activity during the year ended December 31, 2021 excluded from the Statement of Cash Flows was comprised of the following ($ in millions):</span></div><div><span><br/></span></div><div style="padding-left:36pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:69.494%"><tr><td style="width:1.0%"/><td style="width:84.553%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.247%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Settlement of income taxes payable</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">57.3 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company accrues capital expenditures when work has been completed but the associated bills have not yet been paid. These accrued amounts are excluded from capital expenditures on the statement of cash flow until they are paid in a subsequent period. Accrued capital expenditures, including amounts accrued for contractor retainage, were $0.1 million and $2.0 million for the years ended December 31, 2022 and 2021, respectively.</span></div><div><span><br/></span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:31.042%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.395%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:20.923%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.395%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:20.923%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.395%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:20.927%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Balance at <br/>Beginning of Period</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Increase/Decrease <br/>During Period</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Balance at <br/>End of Period</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Account 131, Cash</span></td><td colspan="3" style="padding:0 1pt"/><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">1,321,121,558 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="padding:0 1pt"/><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">198,695,106 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="padding:0 1pt"/><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">1,519,816,664 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Account 135, Working Funds</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">6,000 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">— </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="padding:0 1pt"/><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">6,000 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Total Cash &amp; Cash Equivalents</span></td><td colspan="3" style="padding:0 1pt"/><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">1,321,127,558 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="padding:0 1pt"/><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">198,695,106 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="padding:0 1pt"/><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">1,519,822,664 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr></table></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:6.01pt">Other Paid-In Capital</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Activity within Other Paid-In Capital for the years ended December 31, 2022 and 2021 was as follows ($ in millions):</span></div><div><span><br/></span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:72.109%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.364%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.227%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Balance at December 31, 2020</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">2,570.0 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Net Income</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">184.4 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Settlement of income taxes payable (Note Income Taxes)</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">57.3 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Balance at December 31, 2021</span></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">2,811.7 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Net Income</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">197.0 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Settlement of income taxes payable (Note Income Taxes)</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">58.9 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Settlement of deferred tax liabilities</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">1.0 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt 2px 13pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Settlement of associated company asset transfers</span></td><td colspan="2" style="padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">0.1 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Balance at December 31, 2022</span></td><td style="border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">$</span></td><td style="border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">3,068.7 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="padding:0 1pt"/></tr></table></div>

disclosure_of_pension_post_retirement_benefit_other_than_pensions_p_b_o_p_and_or_post_employment_benefit_plans_text_block:
  <div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:7.34pt">Pension and Other Postretirement Benefit Plans</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">Employees of ETRN operate the Company's assets. ETRN charges the Company for the payroll and benefit costs associated with employees and carries the obligations for other employee-related benefits in its financial statements.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">The Company’s retirees participated in a defined benefit pension plan that was terminated in 2014 (the Retirement Plan). In the third quarter of 2016, the Company reimbursed the sponsor of the Retirement Plan $5.2 million for its proportionate share of such funding related to its retirees. The settlement charge is expected to be recoverable in FERC-approved rates and, thus, was recorded as a regulatory asset that will be amortized for rate recovery purposes over a period of 16 years. The Company no longer incurs allocated pension expenses, and for the </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%">years ended December 31, 2022 and December 31, 2021, the Company amortized $0.3 million in both periods.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company may contribute to a defined contribution plan sponsored by ETRN. The contribution amount under the plan sponsored by ETRN was equal to a percentage of each employee's base salary deposited to an individual investment account for such employee. For the years ended December 31, 2022 and December 31, 2021, the Company did not make direct contributions, but was charged by ETRN through the payroll and benefit costs discussed in Note Related-Party (Associated Companies) Transactions.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%">The Company recognizes expenses for ongoing post-retirement benefits other than pensions, which are subject to recovery in the approved rates. Expenses recognized by the Company for the years ended December 31, 2022 and 2021 for ongoing post-retirement benefits other than pensions were approximately $1.2 million each year.</span></div>

disclosure_of_subsequent_events_text_block:
  <div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:7.34pt">Subsequent Events</span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%">Subsequent events have been evaluated through April 7, 2023, the date the financial statements were available to be issued.</span>


entity_id: C001089
filing_name: White_River_Hub,_LLC_form2_Q4_1686799269
publication_time: 2023-06-14 23:21:09.000000
start_date: 2022-01-01
end_date: 2022-12-31
disclosure_of_important_disclosures_regarding_the_financial_statements_text_block:
  <div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">GENERAL NOTES:</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">BASIS OF PRESENTATION</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">These financial statements are prepared in accordance with the accounting requirements of the Federal Energy Regulatory Commission (FERC) as set forth in its Uniform System of Accounts (USofA) and published accounting releases which is a comprehensive basis of accounting other than generally accepted accounting principles (GAAP). The principal differences from GAAP include:</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">a) As a partnership, White River Hub is not a taxable entity for income tax purposes. The members are taxed directly on their share of income without regard to distributions, and the partners may generally deduct their share of any losses. However, in accordance with FERC requirements, the accompanying financial statements include entries to reflect income taxes as if Respondent were a corporation. At December 31, 2022, current income taxes accrued in the amount of ($4.2) million have been reflected as an adjustment to other paid-in capital.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">b) Income tax expense is reported separately in Net Utility Operating Income and Net Other Income and Deductions rather than being reported as a single net income tax amount. Where uncertainties exist with respect to income tax positions involving temporary differences, Respondent has recorded accumulated deferred income taxes bases on the positions taken in the income tax returns filed or expected to be filed.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">c) Deferred tax assets and liabilities for a jurisdiction are reported separately rather than being netted and reported as a single amount. Deferred taxes are recorded in Accounts 190 - </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, 282 -</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes-Other Property</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or 283 - </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes-Other</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, as appropriate.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">d) The provision for future cost of removal is included in accumulated depreciation and not as a regulatory liability. </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">e) For GAAP purposes, regulatory assets and liabilities are classified as current and noncurrent. For FERC purposes, regulatory assets and liabilities are recorded in Accounts 182.3-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Other Regulatory Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%"> and 254-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">, respectively, with no distinction between current and noncurrent.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Statement of Cash Flows</span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:61.566%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.751%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.714%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.751%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.718%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Year Ended December 31,</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Supplemental Disclosure</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Equity settlement of income taxes</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(4.2)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">6.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Significant noncash financing activities:</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Accrued member distribution</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.6 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.7 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 1. Nature of Operations</span></div><div style="text-align:justify"><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub, LLC (White River Hub) is located in northwestern Colorado and interconnects with six interstate pipelines. White River Hub is an LLC formed under the Delaware Limited Liability Company Act, owned 50% by MountainWest Pipeline, LLC (MountainWest Pipeline), formerly known as Dominion Energy Questar Pipeline, LLC, through MountainWest White River Hub, LLC, formerly known as Questar White River Hub, LLC, and 50% by Enterprise Products Operating, LLC through Enterprise White River Hub, LLC. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">On December 31, 2021, Southwest Gas Holdings, Inc. (Southwest Gas) completed acquisition of Dominion Energy Questar Pipeline, LLC and its subsidiaries, resulting in the name changes noted above.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On December 14, 2022, Southwest Gas, MountainWest Pipelines Holding Company, and Williams Partners Operating LLC, a wholly owned subsidiary of The Williams Companies, Inc (Williams). entered into a Purchase and Sale Agreement to which Southwest Gas sold all of its equity interests in MountainWest to Williams. On February 14, 2023, the Williams Companies Inc, (“Williams”) closed on the acquisition of MountainWest Pipeline, LLC from Southwest Gas Holdings, Inc..</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 2. Significant Accounting Policies </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">General</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">White River Hub makes certain estimates and assumptions in preparing its financial statements in accordance with the USofA. These estimates and assumptions affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue, expenses and cash flows for the periods presented. Actual results may differ from those estimates.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:104%">Operating Revenue</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">White River Hub recognizes revenues in the period that services are provided. The straight-fixed-variable rate design used by White River Hub, which allows for recovery of substantially all fixed costs in the demand or reservation charge, reduces the earnings impact of volume changes on gas-transportation operations. White River Hub may collect revenues subject to possible refunds and establish reserves pending final orders from FERC. Customer receivables at December 31, 2022 and 2021 are comprised entirely of accrued unbilled revenue based on estimated amounts of natural gas delivered but not yet billed to its customers. Operating revenue consist primarily of FERC - regulated transmission related services.</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Transportation contracts are primarily stand-ready service contracts that include fixed reservation and variable fees. Fixed fees are recognized ratably over the life of the contract as the stand-ready performance obligations are satisfied, while variable usage fees are recognized when White River Hub has a right to consideration from a customer in an amount that corresponds directly with the value to the customer of the performance obligation completed to date. Substantially all of White River Hub’s revenues are derived from performance obligations satisfied over time, rather than recognized at a single point in time. The contract with the customer states the final terms of the sale, including the description, quantity and price of each product or service purchased. Payment for most sales and services varies by contract type but is typically due within a month of billing.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:104%">Purchased Gas – Deferred Costs</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The difference between purchased gas expenses and the related levels of recovery for these expenses in current rates are deferred and matched against recoveries in future periods. The deferral of costs in excess of current period fuel rate recovery is recognized as a regulatory asset, while rate recovery in excess of current period fuel expenses is recognized as a regulatory liability.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:104%">Cash and Cash Equivalents</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">For purposes of the Statement of Cash Flows, cash and cash equivalents include cash on hand, cash in banks and temporary investments purchased with an original maturity of three months or less.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:104%">Current banking arrangements generally do not require checks to be funded until they are presented for payment. At December 31, 2022 and 2021, there were no checks outstanding but not yet presented for payment.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:104%">Property, Plant and Equipment</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:104%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Property, plant and equipment, including additions and replacements, is recorded at original cost consisting of labor and materials and other costs such as asset retirement costs, allowance for funds used during construction (AFUDC) and overhead costs. The cost of repairs and maintenance, including minor additions and replacements, is charged to expense as it is incurred.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The undepreciated cost of utility gas property, less salvage value, is generally charged to accumulated depreciation at retirement with gains and losses recorded on the sales of property (land). </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The annual provisions for depreciation of property, plant and equipment are based on FERC-approved straight-line rates applied to the current month ending plant balances. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:112%">Long-Lived Assets</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">White River Hub performs an evaluation for impairment whenever events or changes in circumstances indicate that the carrying amount of long-lived assets may not be recoverable. A long-lived asset is written down to fair value if the sum of its expected future undiscounted cash flows is less than its carrying amount. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:104%">Regulatory Assets and Liabilities</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The accounting for White River Hub’s regulated gas operations differs from the accounting for nonregulated operations in that White River Hub is required to reflect the effect of rate regulation in its financial statements.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">For regulated businesses subject to federal cost-of-service rate regulation, regulatory practices that assign costs to accounting periods may differ from accounting methods generally applied by non-regulated companies. When it is probable that FERC will permit the recovery of current costs through future rates charged to customers, these costs that otherwise would be expensed by non-regulated companies are deferred as regulatory assets.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Likewise, regulatory liabilities are recognized when it is probable that FERC will require customer refunds through future rates or when revenue is collected from customers for expenditures that have yet to be incurred. </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">White River Hub evaluates whether or not recovery of its regulatory assets through future rates is probable as well as whether a regulatory liability due to customers is probable and makes various assumptions in its analyses.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">These analyses are generally based on orders issued by FERC, legislation and judicial actions, past experience, discussions with FERC and legal counsel, forecasted earnings, and considerations around the likelihood of impacts from events such as unusual weather conditions, extreme weather events and other natural disasters.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Generally, regulatory assets and liabilities are amortized into income over the recovery period authorized by FERC. If recovery of a regulatory asset is determined to be less than probable, it will be written off in the period such assessment is made. A regulatory liability, if considered probable, will be recorded in the period such assessment is made or reversed into earnings if no longer probable. See Note 3 for additional information.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:104%">Natural Gas Imbalances</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Natural gas imbalances occur when the physical amount of natural gas delivered from, or received by, a pipeline system differs from the contractual amount of natural gas delivered or received. White River Hub values these imbalances due to or from shippers at an appropriate period-end index price subject to the terms of its tariff. Imbalances are settled in-kind. Imbalances due from others are reported in Account 174-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Miscellaneous Current and Accrued Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> and imbalances owed to others are reported in Account 242-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Miscellaneous Current and Accrued Liabilities.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 3. Regulatory Matters</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">FERC regulates the transportation and sale for resale of natural gas in interstate commerce under the Natural Gas Act of 1938, as amended (NGA) and the Natural Gas Policy Act of 1978, as amended.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Under the NGA, FERC has authority over rates, terms and conditions of services performed by White River Hub.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">FERC also has jurisdiction over siting, construction and operation of interstate natural gas pipeline facilities.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 4. Income Taxes</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Judgment and the use of estimates are required in developing the provision for income taxes and reporting of tax-related assets and liabilities. The interpretation of tax laws involves uncertainty, since tax authorities may interpret the laws differently. Ultimate resolution of income tax matters may result in favorable or unfavorable impacts to net income and cash flows, and adjustments to tax-related assets and liabilities could be material.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub’s operations, including accounting for income taxes, are subject to regulatory accounting treatment. For regulated operations, many of the changes in deferred taxes mandated by the 2017 Tax Reform Act represented amounts probable of collection from or return to customers, and were recorded as either an increase to a regulatory asset in account 182.3-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Other Regulatory Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%"> or liability in account 254-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">. Those regulatory assets or liabilities created a temporary difference for which a deferred tax liability in account 282-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Accumulated Deferred Income Tax-Property</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%"> or 283-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Accumulated Deferred Income Taxes-Other</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%"> or deferred tax asset in account 190-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Accumulated Deferred Income Taxes</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%"> is required to be recognized consistent with the accounting guidance issued by the FERC Chief Accountant in Docket No. AI93-5-000 with respect to changes in tax law or rates.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub has recorded an estimate of the portion of excess deferred income tax amortization in 2022, and changes in estimates of amounts probable of collection from or return to customers. The reversal of these excess deferred income taxes will impact the effective tax rate, and may ultimately impact rates charged to customers.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub has recorded the amortization of the excess and/or deficient accumulated deferred income taxes recorded in Account 254-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%"> by recording the offsetting entries to Account 410.1-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Provision of Deferred Income Tax</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%"> or Account 411.1-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:115%">Provision for Deferred Income Tax-Credit</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">, as required by the USofA.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">The 2017 Tax Reform Act included provisions that stipulate how plant-related, or “protected”, excess deferred taxes may be amortized, and the FERC has provided guidance on the amortization of non-plant-related, or </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">“unprotected” differences.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub is using the average rate assumption method (“ARAM”) to calculate the amortization of its excess accumulated deferred income taxes associated with plant-related temporary differences.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Under the ARAM, the excess accumulated deferred income taxes will reverse at the weighted average rate at which the deferred taxes were built over the remaining book life of the property to which those deferred taxes relate.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">These reversal periods range from one to 34 years.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub does not have any non-plant-related, or "unprotected differences" as of December 31, 2022.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Details of income tax expense for the years ended December 31, 2022 and 2021 are as follows:</span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.684%"><tr><td style="width:1.0%"/><td style="width:50.066%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.165%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:20.050%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.165%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:20.054%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:39pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:39.2pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Current</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:25.65pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Federal</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">(3.4)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.4 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:25.65pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">State</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">(0.8)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">0.3 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Total Current</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">(4.2)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.7 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Deferred</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:25.65pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Federal</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">4.2 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">(0.3)</span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:25.65pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">State</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.0 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">0.0 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Total Deferred</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">5.2 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">(0.3)</span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Provision for Income Taxes</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.0 </span></td><td style="border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:1.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.4 </span></td><td style="border-bottom:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr></table></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The total statutory U.S. Federal income tax rate reconciles to the effective income tax rates as of December 31, 2022 and 2021 as follows:</span></div><div style="text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.386%"><tr><td style="width:1.0%"/><td style="width:50.694%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.024%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.956%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.024%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.802%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:36.34pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:36.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2021</span></td><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">U.S. Statutory Rate</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">21.00 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.25pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">21.00 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Increases (Reductions) Resulting from:</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:19.4pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">State Taxes, Net of Federal Benefit</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">3.59 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">3.59 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:19.4pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Reversal of Excess Deferred Income Taxes</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(2.82)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(1.28)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:19.4pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Other</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">(2.57)</span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">— </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Effective Tax Rate</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">19.20 </span></td><td style="border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.25pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">23.31 </span></td><td style="border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">%</span></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Significant components of deferred income tax assets and liabilities as of December 31, 2022 and 2021 were as follows:</span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.238%"><tr><td style="width:1.0%"/><td style="width:50.775%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.337%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.525%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.337%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.526%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:37.4pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:37.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Deferred Income Tax Assets</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:18.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Excess Deferred Income Tax</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.1 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.1 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:18.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Fuel Gas Reimbursement Percentage</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">— </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">0.1 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">     Intangible – Tax Goodwill</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.7 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">1.8 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Total Deferred Income Tax Assets</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">2.8 </span></td><td style="border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">3.0 </span></td><td style="border-bottom:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:top"/></tr></table></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.238%"><tr><td style="width:1.0%"/><td style="width:50.775%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.337%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.525%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.337%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:19.526%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:37.4pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:37.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:103%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Deferred Income Tax Liabilities</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-indent:18.45pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Plant and Equipment, Primarily Depreciation</span></div><div style="text-indent:18.45pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Method and Basis Differences</span></div></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.3pt;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">3.5 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.45pt;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">$</span></td><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">3.4 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:18.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Fuel Gas Reimbursement Percentage</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">5.1 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">— </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:18.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Other</span></td><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">0.1 </span></td><td style="border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">0.1 </span></td><td style="border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;text-indent:5.6pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">Total Deferred Income Tax Liabilities</span></td><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.3pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">8.7 </span></td><td style="border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;text-indent:0.45pt;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:102%">3.5 </span></td><td style="border-bottom:1pt solid #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 5. Commitments and Contingencies</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">As a result of issues generated in the ordinary course of business, White River Hub may be periodically involved in legal proceedings before various courts and periodically subject to governmental examinations (including by regulatory authorities), inquiries and investigations. These legal proceedings and governmental examinations may involve demands for unspecified amounts of damages. The circumstances of any such legal proceedings and governmental examinations may change from time to time. Currently, management does not anticipate that any potential liability arising from such proceedings would have a material effect on the financial position, liquidity or results of operations of White River Hub. As of December 31, 2022 and 2021, White River Hub had no material legal proceedings or governmental examinations requiring the recognition of a liability. </span></div><div style="text-align:justify"><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">In April 2019, legislation was signed in Colorado that significantly amended the Oil and Gas Conservation Act and directed the Colorado Department of Public Health and Environment (CDPHE) to promulgate additional rules to meet the state’s greenhouse gas emissions goals. One new rulemaking establishing a methane performance program for the natural gas transmission and storage compressor sector has been finalized that could have a material impact on White River Hub. In December 2020, Respondent implemented a methane best management plan and began collecting emissions inventory information for facilities in Colorado which will be submitted annually. The CDPHE will evaluate greenhouse gas reduction performance from the transmission and storage sector to determine if additional requirements will be necessary to meet the state’s goals. At this time, the CDPHE has not determined whether additional rulemaking related to the best management practices plan is needed. As a result, White River Hub is unable to determine if potential impacts on its results of operations, financial condition and/or cash flows related to this matter will be material.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 6. Market and Credit Risk</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Credit risk is the risk of financial loss if counterparties fail to perform their contractual obligations. In order to minimize overall credit risk, credit policies are maintained, including the evaluation of counterparty financial condition. In addition, counterparties may make available collateral, including letters of credit, payment guarantees, or cash deposits. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub’s largest customers include Enterprise Gas Processing, LLC, MountainWest Pipeline , and Koch Energy Services LLC. These three customers provided approximately 89% and 89% of White River Hub’s 2022 and 2021 transportation revenue, respectively. Management believes, based on the White River Hub’s credit policies, it is unlikely that a material adverse effect on financial position, results of operations or cash flows would occur as a result of counterparty nonperformance.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 7. Related-Party Transactions</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">White River Hub is operated by MountainWest Pipeline. On November 16, 2016, employees of MountainWest Pipeline </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:107%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">became employees of MountainWest Pipeline Services, Inc. (MWPS) </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:107%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">and MountainWest Pipeline entered into a services agreement with MWPS. On February 14, 2023 employees of MWPS became employees of Williams.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MWPS </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">provides field operations, gas control, customer service, marketing, legal, regulatory, accounting, pipeline compliance, integrity management, automation, operations and other services and engineering services in which it charges to White River Hub that totaled $1.6 million and $0.8 million in 2022 and 2021, respectively. Payables to MWPS totaled $0.3 million and $0.1 million at December 31, 2022 and 2021, respectively.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">White River Hub provided natural gas transportation services to MountainWest Pipeline in the amount of $1.7 million in both 2022 and 2021. MountainWest Pipeline has a reserved daily capacity on White River Hub of 500,000 dths. Receivables from MountainWest Pipeline totaled $0.1 million at both December 31, 2022 and 2021.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">White River Hub provided natural gas transportation services to Enterprise Products Operating, LLC in the amount of $5.1 million in 2022 and $5.3 million in 2021. Enterprise Products Operating, LLC has a reserved daily capacity on White River Hub of 1,500,000 dths.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Receivables from Enterprise Products Operating, LLC totaled $0.4 million at both December 31, 2022 and 2021.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub maintains imbalances with related parties. At December 31, 2022, the imbalance due to related parties was $3.7 million. At December 31, 2021, the imbalance due from related parties was $0.9 million.</span></div>

disclosure_of_subsequent_events_text_block:
  <div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 8. Subsequent Events</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">White River Hub has evaluated the impact of events occurring after December 31, 2022, up to June 14, 2023, the date that the financial statements were available to be issued, for recognition or disclosure.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:115%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">These financial statements include all necessary adjustments and disclosures resulting from these evaluations.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">On February 14, 2023, the Williams Companies Inc, (“Williams”) closed on the acquisition of MountainWest Pipelines Holding Company from Southwest Gas Holdings, Inc..</span></div>


entity_id: C001088
filing_name: MountainWest_Pipeline,_LLC_form2_Q4_1686799360
publication_time: 2023-06-14 23:22:40.000000
start_date: 2022-01-01
end_date: 2022-12-31
disclosure_of_important_disclosures_regarding_the_financial_statements_text_block:
  <div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">GENERAL NOTES:</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">BASIS OF PRESENTATION</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline, LLC (MountainWest Pipeline or Respondent; formerly Dominion Energy Questar Pipeline, LLC) financial statements are prepared in accordance with the requirements of the Federal Energy Regulatory Commission (FERC) as set forth in the Uniform System of Accounts (USofA) and published accounting releases which is a comprehensive basis of accounting other than accounting principles generally accepted in the United States of America (GAAP). The principal differences from GAAP include:</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">a) Income tax expense is reported separately in Net Utility Operating Income and Net Other Income and Deductions rather than being reported as a single net income tax amount. Where uncertainties exist with respect to income tax positions involving temporary differences, MountainWest Pipeline has recorded accumulated deferred income taxes based on the positions taken in the income tax returns filed or expected to be filed.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">b) Deferred tax assets and liabilities for a jurisdiction are reported separately rather than being netted and reported as a single amount. Deferred taxes are recorded in Accounts 190 - Accumulated Deferred Income Taxes, 282 -Accumulated Deferred Income Taxes-Other Property or 283 - Accumulated Deferred Income Taxes-Other, as appropriate.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">c) The provision for future cost of removal is included in accumulated depreciation and not as a regulatory liability.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">d) MountainWest Pipeline typically receives or retains natural gas liquids (NGLs) and natural gas from customers when providing natural gas processing, transportation or storage services. Effective January 1, 2018, guidance under ASC 606 requires entities to include the fair value of the noncash consideration in the transaction price. Therefore, for GAAP purposes, in addition to recognizing revenue from the sale of NGLs to customers, the fair value of NGLs received as service revenue is recorded on a gross basis along with the cost of the NGLs sold. For </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">FERC purposes, MountainWest Pipeline does not record the noncash consideration rather only the revenue from the sale of the NGLs to customers upon delivery is reflected in Account 490-Sales of Products Extracted from Natural Gas.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">e) For GAAP purposes, regulatory assets and liabilities are classified as current and noncurrent. For FERC purposes, regulatory assets and liabilities are recorded in Accounts 182.3-Other Regulatory Assets and 254-Other Regulatory Liabilities, respectively, with no distinction between current and noncurrent.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">f) Subsidiaries are reflected using the equity method of accounting for FERC purposes, whereas GAAP requires that all subsidiaries over which an entity exercises control be consolidated.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">g) Advances to subsidiaries are reported as investments for FERC purposes, whereas GAAP requires that they be classified as notes receivable.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">h) For GAAP purposes, unamortized debt issuance costs associated with redemptions of debt securities prior to stated maturity dates are generally recognized and recorded in interest expense immediately. Gains or losses resulting from the refinancing of debt allocable to utility operations subject to cost-based rate regulation are deferred and amortized over the lives of the new issuances. For FERC, costs related to debt reacquisition with refunding can be recognized immediately, amortized over the remaining life of the original debt, or amortized over the life of the new debt. Respondent has elected to amortize these costs over the remaining life of the original debt. Unamortized debt issuance costs associated with debt securities redeemed prior to stated maturity dates are recorded in Account 189-Unamortized Loss on Reacquired Debt and are amortized to Account 428–Amortization of Debt Discount and Expense.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">i) Amounts pertaining to restricted cash were included in beginning and end of period cash balances for the GAAP presentation of the Statement of Cash Flows; however, there is no such FERC presentation for MountainWest Pipeline, LLC Statement of Cash Flows included herein.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">j) An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018 (previously known as The Tax Cuts and Jobs Act) enacted on December 22, 2017 (the 2017 Tax Reform Act), includes provisions that stipulate how excess deferred taxes are to be passed back to customers for certain accelerated tax depreciation benefits. As a pass-through entity, MountainWest Pipeline was not subject to entity level income taxes through November 4, 2019. However, in accordance with FERC requirements, Respondent recorded an estimated regulatory liability for excess deferred income taxes expected to be returned to customers for FERC purposes.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">k) Intangible assets are reported in utility plant and not as a separate intangible asset account.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">l) For GAAP purposes, unamortized debt issuance costs are recorded as a reduction in long-term debt and are amortized to interest expense over the expected lives of the respective debt issues. For FERC purposes, unamortized debt issuance costs are recorded in Account 181-Unamortized Debt Expense and are amortized to Account 428-Amortization of Debt Discount and Expense.</span></div><div><span><br/></span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Statement of Cash Flows</span></div><div style="margin-top:12pt;padding-left:4.5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:96.279%"><tr><td style="width:1.0%"/><td style="width:59.641%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.382%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.583%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:4.309%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.585%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Year Ended December 31,</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Supplemental Disclosure</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cash paid during the year for interest</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">18.1 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">18.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Cash paid during the year for income taxes</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">6.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Equity settlement of income taxes</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">9.1 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">337.1 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 7pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Significant noncash investing and financing activities:</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Accrued capital expenditures</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3.0 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2.6 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Notes to Financial Statements</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 1. Nature of Operations</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline owns and operates interstate natural gas pipelines and storage facilities in the western United States and is headquartered in Salt Lake City, Utah. MountainWest Pipeline is a wholly-owned subsidiary of MountainWest Pipelines Holding Company (formerly Dominion Energy Questar Corporation), which was acquired by Southwest Gas Holdings, Inc. from Dominion Energy, Inc. on December 31, 2021. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On December 14, 2022, Southwest Gas Holdings, MountainWest Pipelines Holding Company, and Williams Partners Operating LLC, a wholly owned subsidiary of The Williams Companies, Inc.(Williams) entered into a Purchase and Sale Agreement to which Southwest Gas Holdings sold all of its equity interests in MountainWest to Williams. The sale was completed on February 14, 2023.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 2. Significant Accounting Policies</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">General</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline makes certain estimates and assumptions in preparing its financial statements in accordance with the USofA. These estimates and assumption affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue, expenses and cash flows for the periods presented. Actual results may differ from those estimates</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Income Taxes</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline was acquired by Southwest Gas Holdings, Inc. (Southwest Gas) on December 31, 2021.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> Post-acquisition, MountainWest Pipeline, along with other entities acquired, joined the Southwest Gas affiliate group and are included in the consolidated U.S. federal income tax return of Southwest Gas, effective December 31, 2021. Where applicable, combined income tax returns for Southwest Gas and its subsidiaries are also filed in various states. </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline participated in an intercompany tax sharing agreement with </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Southwest Gas and its subsidiaries. Current income taxes are based on MountainWest Pipeline’s taxable income or loss and credits determined on a separate company basis. Under the agreement, if a subsidiary incurs a tax loss or earns a credit, recognition of current income tax benefits is limited to refunds of prior year taxes obtained by the carryback of net operating loss or credit or to the extent the net operating loss or credit is absorbed by the taxable income of other Southwest Gas consolidated group members. Otherwise, the net operating loss or credit is carried forward and is recognized as a deferred tax asset until realized.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Accounting for income taxes involves an asset and liability approach. Deferred income tax assets and liabilities are provided, representing future effects on income taxes for temporary differences between the bases of assets and liabilities for financial reporting and tax purposes. Accordingly, deferred taxes are recognized for the future consequences of different treatments used for the reporting of transactions in financial accounting and income tax returns.MountainWest Pipeline establishes a valuation allowance when it is more-likely-than-not that all, or a portion, of a deferred tax asset will not be realized. MountainWest Pipeline had no valuation allowance as of December 31, 2022 and 2021, respectively.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline recognizes positions taken, or expected to be taken, in income tax returns that are more-likely-than-not to be realized, assuming that the position will be examined by tax authorities with full knowledge of all relevant information. However, in order to preserve accumulated deferred income taxes to be used to reduce rate base or the cost of capital for regulatory purposes, income taxes payable, including amounts related to unrecognized tax benefits, are included in Account 236, </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Taxes Accrued</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, and amounts receivable from or amounts prepaid to tax authorities are included in Account 143, </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Accounts Receivable</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">. At December 31, 2022 and 2021 MountainWest Pipeline had no unrecognized tax benefits.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:115%">Operating Revenue</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Operating revenue is recorded on the basis of services rendered, commodities delivered or contracts settled and includes amounts yet to be billed to customers. MountainWest Pipeline is currently generating significant revenue and earnings from annual reservation payments under firm peaking storage and firm transportation contracts. Straight-fixed-variable rate designs are used to allow for recovery of substantially all fixed costs in the demand or reservation charges, thereby reducing the earnings impact of volume changes on gas transportation and storage operations. Respondent may collect revenues subject to possible refunds and establish reserves pending final orders from regulatory agencies. Customer and other and affiliated receivables at December 31, 2022 and 2021 included $16.0 million and $15.4 million, respectively, of accrued unbilled revenue based on estimated amounts of natural gas delivered but not yet billed to its customers. Operating revenue consists primarily of FERC-regulated transmission sales and service activities. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline receives upfront payment for certain storage services it provides to customers, which are considered to be contract liabilities. These payments are amortized to revenue over the term of the contract. During 2022 and 2021, Respondent received $3.4 million and $1.8 million, respectively, of such payments. Deferred Revenue represents the difference between the amount received and the revenue recognized and is included in Account 253–</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Deferred Credits.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Transportation and storage contracts are primarily stand-ready service contracts that include fixed reservation and variable fees. Fixed fees are recognized ratably over the life of the contract as the stand-ready performance obligations are satisfied, while variable usage fees are recognized when MountainWest Pipeline has a right to consideration from a customer in an amount that corresponds directly with the value to the customer of the performance obligation completed to date. Substantially all of Respondent’s revenues are derived from performance obligations satisfied over time, rather than recognized at a single point in time. The contract with the customer states the final terms of the sale, including the description, quantity and price of each product or service purchased. Payment for most sales and services varies by contract type but is typically due within a month of billing. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Contract liabilities represent an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration, or the amount that is due from the customer. MountainWest Pipeline’s contract liability balances were $4.8 million and $4.0 million for December 31, 2022 and 2021, respectively, recorded in Account 253-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Deferred Credits.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> During 2022 and 2021, MountainWest Pipeline, LLC recognized revenue of $1.8</span><span style="color:#ff0000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">million and $1.3 million, respectively, from the beginning contract liability balances as MountainWest Pipeline fulfilled its obligations to provide service to its customers.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Purchased Gas – Deferred Costs</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The difference between purchased gas expenses and the related levels of recovery for these expenses in current rates are deferred and matched against recoveries in future periods. The deferral of costs in excess of current period fuel rate recovery is recognized as a regulatory asset, while rate recovery in excess of current period fuel expenses is recognized as a regulatory liability.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Cash, Restricted Cash and Equivalents</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:115%">For purposes of the Statement of Cash Flows, cash and cash equivalents include cash on hand, cash in banks and temporary investments purchased with an original maturity of three months or less. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Current banking arrangements generally do not require checks to be funded until they are presented for payment. At December 31, 2022 and 2021, accounts payable included $0.5 million and $0.1 million, respectively, of checks outstanding but not yet presented for payment. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline holds restricted cash and cash equivalent balances that consist of amounts held for customer deposits as allowed under FERC gas tariffs. Respondent held $2.6 million and $2.7 million in restricted cash at December 31, 2022 and 2021, respectively. These amounts are shown on MountainWest Pipeline’s Comparative Balance Sheet in Account 134–</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Special Deposits.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Investments in Subsidiary Companies</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline owns 50% of White River Hub, LLC (White River Hub) a FERC-regulated transporter of natural gas, through MountainWest White River Hub, LLC (formerly Questar White River Hub, LLC), and is the operator. Respondent also owns 100% of MountainWest Overthrust Pipeline, LLC (formerly Dominion Energy Overthrust Pipeline, LLC), which is also a FERC regulated transporter of natural gas as well as 100% of MountainWest Field Services, LLC (formerly Questar Field Services, LLC), which owns and operates a </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">processing facility and gathering lines. Under the definitions in the USofA, White River Hub, Overthrust, and Questar Field Services are subsidiary companies for FERC reporting purposes.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline uses the equity method to account for its investment in subsidiary companies for FERC purposes. The investments in subsidiary companies on Respondent’s Comparative Balance Sheet equal its proportionate share of equity reported by the subsidiary companies, with the exception of its Investment in White River Hub due to the accumulated deferred income tax adjustment for White River Hub’s Internal Revenue Code (IRC) Section 754 election as approved by FERC in Docket No. AC17-206-000. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Investments in subsidiary companies are assessed for possible impairment when events indicate that the fair value of the investment may be below MountainWest Pipeline’s carrying value. When such a condition is deemed to be other-than-temporary, and the write-down is approved for FERC purposes, the carrying value of the investment is written down to its fair value, and the amount of the write-down is included in the determination of net income.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Property, Plant and Equipment</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Property, plant and equipment, including additions and replacements, is recorded at original cost, consisting of labor and materials and other costs such as asset retirement costs, allowance for funds used during construction (AFUDC) and overhead costs. The cost of repairs and maintenance, including minor additions and replacements, is charged to expense as it is incurred.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline capitalized AFUDC of $0.5 million to property, plant and equipment for the year ended December 31, 2022 and $0.6 million for the year ended December 31, 2021. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The undepreciated cost of utility gas property (land), less salvage value, is generally charged to accumulated depreciation at retirement with gains and losses recorded on the sales of property (land). </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The annual provisions for depreciation of property, plant and equipment are based on FERC-approved straight-line rates applied to the current month ending plant balances. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Long-Lived Assets</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Respondent performs an evaluation for impairment whenever events or changes in circumstances indicate that the carrying amount of long-lived assets may not be recoverable. A long-lived asset is written down to fair value if the sum of its expected future undiscounted cash flows is less than its carrying amount. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:115%">Regulatory Assets and Liabilities</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accounting for MountainWest Pipeline’s regulated gas operations differs from the accounting for nonregulated operations in that Respondent is required to reflect the effect of rate regulation in its financial statements. For regulated businesses subject to federal cost-of-service rate regulation, regulatory practices that assign costs to accounting periods may differ from accounting methods generally applied by non-regulated companies. When it is probable that FERC will permit the recovery of current costs through future rates charged to customers, these costs that otherwise would be expensed by non-regulated companies are deferred as regulatory assets. Likewise, regulatory liabilities are recognized when it is probable that FERC will require customer refunds through future rates or when revenue is collected from customers for expenditures that have yet to be incurred. </span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline evaluates whether or not recovery of its regulatory assets through future rates is probable as well as whether a regulatory liability due to customers is probable and makes various assumptions in its analyses. These analyses are generally based on orders issued by FERC, legislation and judicial actions, past </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">experience, discussions with FERC and legal counsel, forecasted earnings, and considerations around the likelihood of impacts from events such as unusual weather conditions, extreme weather events and other natural disasters.</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Generally, regulatory assets and liabilities are amortized into income over the recovery period authorized by FERC. If recovery of a regulatory asset is determined to be less than probable, it will be written off in the period such assessment is made. A regulatory liability, if considered probable, will be recorded in the period such assessment is made or reversed into earnings if no longer probable. See Note 9 for additional information.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Inventories</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Materials and supplies and gas stored are valued at the lower of cost (primarily using the weighted-average cost method) or market.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Debt Issuance Costs</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline defers and amortizes debt issuance costs and debt premiums or discounts over the expected lives of the respective debt issues, considering maturity dates and, if applicable, redemption rights held by others. Deferred debt issuance costs are recorded as an asset in Account 181-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Unamortized Debt Expense</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> in the Comparative Balance Sheet and are amortized to Account 428–</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Amortization of Debt Discount and Expense. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Natural Gas Imbalances</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Natural gas imbalances occur when the physical amount of natural gas delivered from, or received by, a pipeline system or storage facility differs from the contractual amount of natural gas delivered or received. MountainWest Pipeline values these imbalances due to or from shippers and operators at an appropriate index price at period-end subject to the terms of its tariff.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Imbalances are settled in-kind and in cash.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Imbalances due from others are reported in Account 174-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Miscellaneous Current and Accrued Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> and imbalances owed to others are reported in Account 242-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Miscellaneous Current and Accrued Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. See Note 7 for amounts related to affiliates and subsidiaries.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Asset Retirement Obligations (AROs)</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline recognizes AROs at fair value as incurred or when sufficient information becomes available to determine a reasonable estimate of the fair value of future retirement activities to be performed, for which a legal obligation exists. These amounts are generally capitalized as costs of the related tangible long-lived assets. Since relevant market information is not available, fair value is estimated using discounted cash flow analyses. Quarterly, MountainWest Pipeline assesses their AROs to determine if circumstances indicate that estimates of the amounts or timing of future cash flows associated with retirement activities have changed. AROs are adjusted when significant changes in the amounts or timing of future cash flows are identified. MountainWest Pipeline reports accretion of AROs and depreciation on asset retirement costs associated with its natural gas pipeline assets as an adjustment to the related regulatory liabilities when revenue is recoverable from customers for AROs.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Prior to its acquisition by Southwest Gas, MountainWest Pipeline recognized its estimated ARO liabilities associated with the interim replacement of pipeline components on its consolidated balance sheets. In association with the acquisition of MountainWest Pipeline by Southwest Gas, management assessed existing estimates, determining that due to the indeterminant removal date, its expected use of the assets in place, and expectations around renewal of easements and rights of way, that these AROs were no longer reasonably estimable. The resulting change in estimate was not material to the consolidated financial statements </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 3. Income Taxes</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Judgment and the use of estimates are required in developing the provision for income taxes and reporting of tax-related assets and liabilities. The interpretation of tax laws involves uncertainty, since tax authorities may interpret the laws differently. Ultimate resolution of income tax matters may result in favorable or unfavorable impacts to net income and cash flows, and adjustments to tax-related assets and liabilities could be material.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline's operations, including accounting for income taxes, are subject to regulatory accounting treatment. For regulated operations, many of the changes in deferred taxes mandated by the 2017 Tax Reform Act represented amounts probable of collection from or return to customers, and were recorded as either an increase to a regulatory asset in account 182.3-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Regulatory Assets</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or liability in account 254-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">. Those regulatory assets or liabilities created a temporary difference for which a deferred tax liability in account 282-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Tax-Property</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or 283-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes-Other</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or deferred tax asset in account 190-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Accumulated Deferred Income Taxes</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> is required to be recognized consistent with the accounting guidance issued by the FERC Chief Accountant in Docket No. AI93-5-000 with respect to changes in tax law or rates.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline has recorded an estimate of the portion of excess deferred income tax amortization in 2022, and changes in estimates of amounts probable of collection from or return to customers. The reversal of these excess deferred income taxes will impact the effective tax rate, and may ultimately impact rates charged to customers.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Respondent has recorded the amortization of the excess and/or deficient accumulated deferred income taxes recorded in Account 254 -</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Other Regulatory Liabilities</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> by recording the offsetting entries to Account 410.1-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Provision of Deferred Income Tax</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%"> or Account 411.1-</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:112%">Provision for Deferred Income Tax-Credit</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">, as required by the Uniform System of Accounts (“USofA”).</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The 2017 Tax Reform Act included provisions that stipulate how plant-related, or “protected”, excess deferred taxes may be amortized. The FERC has also provided guidance on the amortization of non-plant-related, or “unprotected” excess or deficient deferred taxes.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline is using the average rate assumption method (“ARAM”) to calculate the amortization of its excess accumulated deferred income taxes associated with plant-related temporary differences.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Under ARAM, the excess accumulated deferred income taxes will reverse at the weighted average rate at which the deferred taxes were built over the remaining book life of the property to which those deferred taxes relate.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">These reversal periods range from one to 34 years.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">For non-plant-related excess or deficient accumulated deferred income taxes, the balances will reverse when the underlying book or tax item to which those deferred taxes relate has been realized or settled.</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:12pt;font-weight:400;line-height:112%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The reversal periods for Respondent’s unprotected differences range from one to 30 years.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Details of income tax expense for the years ended December 31, 2022 and 2021 are as follows:</span></div><div style="margin-top:12pt;padding-left:4.68pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.940%"><tr><td style="width:1.0%"/><td style="width:64.730%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.131%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.439%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.758%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.442%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Current</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Federal</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">13.5 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">State</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total Current</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">16.5 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Deferred</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Federal</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">6.1 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(2.1)</span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">State</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2.3 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(0.2)</span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total Deferred</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">8.4 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(2.3)</span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Provision for Income Taxes</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">8.4 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">14.2 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Income tax expense, excluding Earnings of Subsidiary Companies, differs from the amount computed by applying the statutory federal income tax rate of 21 percent for the following reasons for each of the years ended December 31:</span></div><div style="margin-top:12pt;padding-left:4.68pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.345%"><tr><td style="width:1.0%"/><td style="width:65.146%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.518%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.158%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.518%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.160%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">U.S. Statutory Rate</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">21.00 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">%</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">21.00 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">%</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Increases (Reductions) Resulting from:</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">State Taxes, Net of Federal Benefit</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">4.58 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3.32 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Reversal of Excess Deferred Income Taxes</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(4.17)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(2.84)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Other</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(0.30)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.01 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Effective Tax Rate</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">21.11 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">%</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">21.49 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">%</span></td></tr></table></div><div><span><br/></span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Significant components of deferred income tax assets and liabilities as of December 31, 2022 and 2021 were as follows:</span></div><div style="margin-top:12pt;padding-left:4.68pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:93.005%"><tr><td style="width:1.0%"/><td style="width:64.020%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.220%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.700%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.860%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.700%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Deferred Income Tax Assets</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Deferred Revenue</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.6 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Excess Deferred Income Tax</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">10.6 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">10.4 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Employee Benefits</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">4.4 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Regulatory Asset – Fuel Gas Reimbursement Percentage</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.3 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Intangible - tax goodwill</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">152.9 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">165.9 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Net Operating Loss</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">13.2 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3.2 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Other</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.5 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total Deferred Income Tax Assets</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">182.5 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">179.5 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:12pt;padding-left:4.68pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:93.005%"><tr><td style="width:1.0%"/><td style="width:64.020%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.220%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.700%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.860%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.700%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Deferred Income Tax Liabilities</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Plant and Equipment, Primarily Depreciation Method and Basis Differences</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(0.6)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2.3 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Regulatory Asset - MTM</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">7.4 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Other</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.2 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total Deferred Income Tax Liabilities</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">7.0 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2.3 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">The acquisition of MountainWest Pipeline by Southwest Gas was a taxable transaction for U.S. federal and state income tax purposes. As a result, Southwest Gas obtained a step-up in the bases of the assets acquired for income tax purposes, without succeeding to the holding period, accounting methods, or historical income tax liabilities associated with MountainWest Pipeline. The acquisition by Southwest Gas resulted tax-deductible goodwill. Because the book basis of goodwill was not pushed down to MountainWest Pipeline, a deferred tax asset was recorded for the temporary difference which will be amortized over 15 years. During 2022, a measurement period adjustment was recorded resulting in $9.1 million of additional deferred taxes that were recorded as a non-cash equity contribution.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">MountainWest Pipeline files U.S. federal and state income tax returns in jurisdictions with varying statutes of limitations. MountainWest Pipeline is included in the consolidated federal income tax return of Southwest Gas. There are no current open income tax audits in the U.S. federal jurisdiction or any state jurisdiction.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 4. Asset Retirement Obligations</span></div><div style="text-align:justify"><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">AROs represent legal obligations that result from laws, statutes, contracts and regulations related to the eventual retirement of certain of MountainWest Pipeline's long-lived assets. Prior to its change in parent, MountainWest Pipeline reported an estimate of ARO liabilities associated with the interim replacement of pipeline components on its consolidated balance sheets, based on projected cash flows, including projected usage and maintenance of its assets. In connection with the acquisition of MountainWest Pipeline by Southwest Gas, new management assessed the information available to develop an estimate. Factors assessed included indeterminant interim removal dates based on maintenance of the entity’s assets, management’s expected use of the assets in place, and expectations around renewal of easements and rights of way. On the basis of this evaluation, new management concluded that it did not possess information of sufficient precision to reasonably estimate the ARO liability. New management’s assessment is viewed as a change in estimate.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">MountainWest Pipeline will monitor operational, legal, and strategic developments to identify if sufficient information becomes available to reasonably estimate these AROs in future reporting periods.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">At December 31, 2022, ARO balances were zero and no changes were noted during the year.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">Changes to MountainWest Pipeline’s AROs during 2021 are as follows: </span></div><div style="margin-top:12pt;padding-left:9pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.238%"><tr><td style="width:1.0%"/><td style="width:82.181%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.118%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.401%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">AROs at December 31, 2020</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">14.4 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Accretion</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.7 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Liabilities settled in the current period</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(0.9)</span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Change in estimate </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:120%">(1)</span></div></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(14.2)</span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">AROs at December 31, 2021</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span style="color:#000000;font-family:'Calibri',sans-serif;font-size:8pt;font-weight:400;line-height:112%"> (1) </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:112%"> The decrease in AROs results in a corresponding decrease to property, plant and equipment, net of $8.3 </span></div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-weight:400;line-height:112%"> million and an increase in regulatory liabilities of $5.9 million.</span><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 5. Long-Term Debt</span></div><div style="margin-top:12pt;padding-left:4.68pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:92.261%"><tr><td style="width:1.0%"/><td style="width:45.190%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.093%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.254%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.803%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.254%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.806%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">At December 31,</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2022</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Weighted-average </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Coupon</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;text-decoration:underline;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions, except percentages)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Unsecured senior notes, 3.53%, due in 2028</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3.53%</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">100.0 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">100.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Unsecured senior notes, 4.88%, due in 2041</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">4.88%</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">180.0 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">180.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Unsecured senior notes, 3.91%, due in 2038</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">3.91%</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">150.0 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">150.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total principal</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">430.0 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">430.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Unamortized discount and premium, net</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(1.4)</span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(1.4)</span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 31pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total long-term debt</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">428.6 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">428.6 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="padding-left:36pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:120%">(1) Represent weighted-average coupon rates for debt outstanding at December 31, 2022.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Based on stated maturity dates the scheduled principal payments of long-term debt at December 31, 2022 were as follows:</span></div><div style="margin-top:12pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:98.809%"><tr><td style="width:1.0%"/><td style="width:19.984%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:5.375%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:5.375%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:5.375%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:5.375%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:5.375%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:9.291%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:2.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:6.588%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions, except percentages)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2023</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2024</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2025</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2026</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2027</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Thereafter</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Total</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Unsecured senior and medium-term notes</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">430.0 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">430.0 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Weighted-average coupon</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">4.23 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">%</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">MountainWest Pipeline’s long-term debt agreements contain customary covenants and default provisions. At December 31, 2022, MountainWest Pipeline was in compliance with the financial covenants associated with its long-term debt agreements..</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 6. Commitments and Contingencies</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Calibri',sans-serif;font-size:11pt;font-weight:400;line-height:107%">A</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">s a result of issues generated in the ordinary course of business, MountainWest Pipeline may be involved in legal proceedings before various courts and periodically subject to governmental examinations (including by FERC), inquiries and investigations. These legal proceedings and governmental examinations may involve demands for unspecified amounts of damages. The circumstances of any such legal proceedings and governmental examinations may change from time to time. Currently, management does not anticipate that any potential liability arising from such proceedings would have a material effect on the financial position, liquidity or results of operations of MountainWest Pipeline. As of December 31, 2021, Respondent had no material legal proceedings or governmental examinations requiring the recognition of a liability. In March 2022, a complaint in U.S. district court was served on MountainWest Pipeline and a number of other defendants, alleging royalty payments due. While management disputes the allegations, the ultimate outcome is currently indeterminable and inestimable, but management does not believe that it would be material to Respondent’s financial position, liquidity, or results of operations overall. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">In April 2019, legislation was signed in Colorado that significantly amended the Oil and Gas Conservation Act and directed the Colorado Department of Public Health and Environment (CDPHE) to promulgate additional rules to meet the state’s greenhouse gas emissions goals. One new rulemaking establishing a methane performance program for the natural gas transmission and storage sector has been finalized that could have a material impact on MountainWest Pipeline. In December 2020, MountainWest Pipeline implemented a methane best management practices plan and began collecting emissions inventory information for its facilities in Colorado which is submitted annually. The CDPHE will evaluate greenhouse gas reduction performance from the transmission and storage sector to determine if additional requirements will be necessary to meet the state’s goals. At this time, the CDPHE has not determined whether additional rulemaking related to the best management practices plan is needed. As a result, MountainWest Pipeline is unable to determine if potential impacts on its results of operations, financial condition and/or cash flows related to this matter will be material.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">In another rulemaking finalized in December 2021, the CDPHE amended certain regulations that, among other things, establishes a steering committee to develop recommendations for the reduction of greenhouse gas emissions from combustion sources in the midstream segment of Colorado’s oil and natural gas industry. MountainWest Pipeline has natural gas processing facilities which are part of this midstream segment and could be impacted by this rule. This steering committee is directed to consider all means of reducing greenhouse gas emissions, including the electrification of fuel-burning engines. The steering committee is required to publish its guidelines in 2023, after which the CDPHE is expected to establish requirements for reducing greenhouse gas emissions from these combustion sources MountainWest Pipeline cannot determine whether potential impacts on its results of operations, financial condition and/or cash flows related to this matter will be material.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Surety Bonds</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">At December 31, 2022, MountainWest Pipeline had purchased $5.1 million of surety bonds. Under the terms of surety bonds, Respondent is obligated to indemnify the respective surety bond company for any amounts paid.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 7. Related-Party Transactions</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline engages in related-party transactions primarily with its subsidiaries and, prior to acquisition by Southwest Gas, other Dominion Energy subsidiaries (affiliates). Regarding the change in ownership, Respondent has chosen to disclose all services received from or provided to Dominion Energy subsidiaries as affiliate transactions for the year ended December 31, 2021, even though that relationship was terminated on December 31, 2021. MountainWest Pipeline’s receivable and payable balances with affiliates are settled based on contractual terms or on a monthly basis, depending on the nature of the underlying transactions. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Affiliated costs are incurred on the basis of direct and allocated methods in accordance with MountainWest Pipeline’s services agreements. Where costs incurred cannot be determined by specific identification, the costs are generally allocated based on each affiliated company's proportional share of revenues less product costs; property, plant and equipment; and labor costs and based on the proportional level of effort devoted by resources that is attributable to MountainWest Pipeline, determined by reference to number of employees, salaries and wages and other similar measures for the relevant service. Following the acquisition of MountainWest Pipeline and certain other affiliated entities by Southwest Gas Holdings, a TSA was executed providing that certain services would continue to be provided by Dominion Energy during the period of the TSA (up to twelve months or longer if an extension is agreed to by both parties), and certain services would continue to be similarly allocated/charged. Management believes that the allocation methods are reasonable.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Transactions with Subsidiaries</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline provides and purchases goods and services to and from its subsidiaries in the ordinary course of business. Presented below are significant transactions with subsidiaries:</span></div><div style="margin-top:12pt;padding-left:4.68pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.982%"><tr><td style="width:1.0%"/><td style="width:65.721%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.086%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.303%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.086%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.304%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Year Ended December 31,</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Services provided to subsidiaries</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.2 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.6 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Purchases of natural gas transportation from subsidiaries</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">7.3 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">6.2 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Gas processing services from subsidiary</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">1.3 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">1.3 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Transactions with Affiliates</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline Services, Inc.(formerly Dominion Energy Questar Pipeline Services, Inc.) provides services to MountainWest Pipeline, which primarily consist of administrative, management, marketing, financial and operational services. On February 14, 2023 employees of MountainWest Pipeline Services, Inc. became employees of Williams.Through December 31, 2021, Dominion Energy Questar and other affiliates (Dominion Energy Services, Inc. (DES)) provided accounting, legal, finance and certain administrative and technical services to MountainWest Pipeline. Beginning in 2022, Southwest Gas Holdings also provides various services to MountainWest Pipeline such as tax, legal, and various other technical or administrative services. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Through December 31, 2021, MountainWest Pipeline provided certain services to Questar Gas, an affiliate, including transportation and storage. The billed amounts of these services are allocated based on usage. Management believes that the allocation method is reasonable. The amount of these services follow:</span></div><div style="margin-top:12pt;padding-left:4.68pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:95.982%"><tr><td style="width:1.0%"/><td style="width:65.721%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.086%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.303%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.086%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.304%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Year Ended December 31,</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Sales of natural gas transportation and storage services to affiliates</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">80.6 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Services provided to affiliates</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">— </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.2 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Goods and services provided by affiliates to Dominion Energy Questar Pipeline</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">(1)</span></div></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">61.7 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">30.6 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="padding-left:22.5pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:120%">(1) Includes capitalized expenditures of $2.1 million and $2.5 million for the year ended December 31, 2022 and 2021, respectively.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Natural Gas Imbalances</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline maintains natural gas imbalances with subsidiaries and affiliates. </span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:112%">These imbalances are provided below: </span></div><div style="margin-top:12pt;padding-left:4.68pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:97.470%"><tr><td style="width:1.0%"/><td style="width:66.228%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.022%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.113%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:3.022%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.115%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">At December 31,</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2022</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(millions)</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-left:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Imbalances payable to affiliates</span></td><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">13.8 </span></td><td style="border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$</span></td><td colspan="2" style="border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">0.1 </span></td><td style="border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Imbalances receivable from subsidiaries and affiliates</span></td><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">8.5 </span></td><td style="border-bottom:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:0 1pt"/><td colspan="2" style="border-bottom:1pt solid #000;border-left:1pt solid #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">1.6 </span></td><td style="border-bottom:1pt solid #000;border-right:1pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note Receivable from Subsidiary and Interest Income</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline loaned excess funds in the amount of $55.0 million to its subsidiary, MountainWest Overthrust Pipeline, LLC. The amount is recorded in Account 123.1–</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Investments in Subsidiaries </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">in the Comparative Balance Sheet. Related interest income for 2022 and 2021 was $1.9 million, respectively.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 8. Market and Credit Risk</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Credit risk is the risk of financial loss if counterparties fail to perform their contractual obligations. In order to minimize overall credit risk, credit policies are maintained, including the evaluation of counterparty financial condition. In addition, counterparties may make available collateral, including letters of credit, payment guarantees, or cash deposits.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline provides service to approximately 60 customers, including storage customers, marketers or end-users, power generators, and utilities. MountainWest Pipeline's largest customer (an affiliate through December 2021) represents approximately 46% and 48% of such amounts for the years ended December 31, 2022 and 2021, respectively. MountainWest Pipeline maintains a provision for credit losses based on factors surrounding the credit risk of its customers, historical trends and other information. At December 31, 2022 and 2021, the provision for credit losses was $0.0 million and $0.3 million, respectively. Management believes, based on credit policies and the December 31, 2022 provision for credit losses that it is unlikely that a material adverse effect on financial position, results of operations or cash flows would occur as a result of counterparty nonperformance.</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 9. Regulatory Matters</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">FERC regulates the transportation and sale for resale of natural gas in interstate commerce under the Natural Gas Act of 1938, as amended (NGA) and the Natural Gas Policy Act of 1978, as amended. Under the NGA, FERC has authority over rates, terms and conditions of services performed by MountainWest Pipeline. FERC also has jurisdiction over siting, construction, and operation of interstate natural gas pipeline facilities.</span></div>

disclosure_of_subsequent_events_text_block:
  <div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Note 10. Subsequent Events</span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">MountainWest Pipeline has evaluated the impact of events occurring after December 31, 2022, up to March 31, 2023, the date that the MountainWest Pipeline Consolidated GAAP financial statements were issued for </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">recognition or disclosure and has updated such evaluation for disclosure purposes through June 14, 2023. These financial statements include all necessary adjustments and disclosures resulting from these evaluations. </span></div><div style="margin-top:12pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:107%">On February 14, 2023, the Williams Companies Inc, (“Williams”) closed on the acquisition of MountainWest Pipelines Holding Company from Southwest Gas Holdings, Inc..</span></div>


