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Utility Regulatory Assets and Liabilities and Regulatory Matters | 6 Months Ended
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Mar. 31, 2025
Regulated Operations [Abstract] |
Utility Regulatory Assets and Liabilities and Regulatory Matters | Note 7 — Utility Regulatory Assets and Liabilities and Regulatory Matters For a description of the Company’s regulatory assets and liabilities, other than those described below, see Note 9 in the Company’s 2024 Annual Report. Other than removal costs, Utilities currently does not recover a rate of return on its regulatory assets listed below. The following regulatory assets and liabilities associated with Utilities are included on the Condensed Consolidated Balance Sheets:
|  | March 31, 2025 |  | September 30, 2024 |  | March 31, 2024
Regulatory assets (a): |  |  |  |  |  |
Income taxes recoverable |  | $ | 109 |  |  | $ | 105 |  |  | $ | 93 |
Underfunded pension plans |  | 104 |  |  | 106 |  |  | 109 |
Environmental costs |  | 25 |  |  | 28 |  |  | 32 |
Deferred fuel and power costs |  | 4 |  |  | — |  |  | — |
Removal costs, net |  | 29 |  |  | 28 |  |  | 23 |
Other |  | 41 |  |  | 52 |  |  | 55 |
Total regulatory assets |  | $ | 312 |  |  | $ | 319 |  |  | $ | 312 |
Regulatory liabilities (a): |  |  |  |  |  |
Postretirement benefits |  | $ | 12 |  |  | $ | 13 |  |  | $ | 11 |
Deferred fuel and power refunds |  | 37 |  |  | 17 |  |  | 34 |
State income tax benefits — distribution system repairs |  | 45 |  |  | 44 |  |  | 44 |
Excess federal deferred income taxes |  | 246 |  |  | 247 |  |  | 250 |
Other |  | 16 |  |  | 8 |  |  | 8 |
Total regulatory liabilities |  | $ | 356 |  |  | $ | 329 |  |  | $ | 347 |
(a)Current regulatory assets are included in “Prepaid expenses and other current assets” and regulatory liabilities are included in “Other current liabilities” and “Other noncurrent liabilities” on the Condensed Consolidated Balance Sheets. Deferred fuel and power - costs and refunds. Utilities’ tariffs contain clauses that permit recovery of all prudently incurred purchased gas and power costs through the application of PGC rates, PGA rates and DS tariffs. These clauses provide for periodic adjustments to PGC, PGA and DS rates for differences between the total amount of purchased gas and electric generation supply costs billed to customers and recoverable costs incurred. Net underbilled costs are classified as a regulatory asset and net overbillings are classified as a regulatory liability. PA Gas Utility uses derivative instruments to reduce volatility in the cost of gas it purchases for retail core-market customers. Realized and unrealized gains or losses on natural gas derivative instruments are included in deferred fuel and power costs or refunds. Net unrealized gains (losses) on such contracts at March 31, 2025, September 30, 2024 and March 31, 2024 were $19, $2 and $(7), respectively. Other Regulatory Matters UGI Utilities. On January 27, 2025, PA Gas Utility filed a request with the PAPUC to increase its base operating revenues for residential, commercial and industrial customers by $110 annually. The increased revenues would fund ongoing system improvements and operations necessary to maintain safe and reliable natural gas service. PA Gas Utility requested the new gas rates become effective March 28, 2025. The PAPUC entered an Order on February 20, 2025, suspending the effective date for the rate increase to allow for investigation and public hearings. Unless a settlement is reached sooner, the review process is expected to last up to nine months from the date of filing. The Company cannot predict the timing or the ultimate outcome of the rate case review process. Mountaineer. On July 31, 2024, WV Gas Utility submitted its 2024 IREP filing to the WVPSC requesting recovery of $19, which includes $3 of prior year under-recovery, for costs associated with capital investments after December 31, 2022, that total $197, including $74 in calendar year 2025. The filing included capital investments totaling $418 over the 2025 - 2029 period. On October 28, 2024, the WVPSC issued an order approving WV Gas Utility’s request, with new rates effective January 1, 2025. On July 31, 2023, WV Gas Utility submitted its 2023 IREP filing to the WVPSC requesting recovery of $10, an increase of $6, for costs associated with capital investments after December 31, 2022, that total $131, including $67 in calendar year 2024. With new base rates expected to be effective January 1, 2024, revenues from IREP rates would decrease by $12. The filing included capital investments totaling $383 over the 2024 - 2028 period. On December 20, 2023, the WVPSC issued a final order approving a settlement effective January 1, 2024. On March 6, 2023, WV Gas Utility submitted a base rate case filing with the WVPSC seeking a net revenue increase of $20, which consisted of an increase in base rates of $38 and a decrease in the IREP rates of $18 annually to be effective on April 5, 2023. On March 31, 2023, the WVPSC suspended the effective date of the requested rate change increase until January 1, 2024 to allow for a full review of the filing. On October 6, 2023, WV Gas Utility filed a joint stipulation and agreement for settlement of the base rate case, which included a $14 net revenue increase. On December 21, 2023, the WVPSC issued a final order approving the joint stipulation and agreement, except the WVPSC authorized WV Gas Utility to implement a weather normalization adjustment rider as a five-year pilot program beginning on October 1, 2024. The new rates went into effect on January 1, 2024. On April 11, 2024, the WVPSC approved the calculation methodology submitted by WV Gas Utility on March 28, 2024. Under this rider, when weather deviates from normal by more than 2%, for service rendered during the period October 1 through May 31, residential and small commercial customer billings for distribution services are adjusted for weather related impacts exceeding the 2% threshold.

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