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Derivative Assets And Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2025
General Discussion of Derivative Instruments and Hedging Activities [Abstract] |
Derivatives, Offsetting Fair Value Amounts [Table Text Block] | The following table presents the fair value of our recognized derivative assets and liabilities on a gross basis and amounts offset on the consolidated balance sheets that are subject to enforceable master netting arrangements or similar arrangements:
|  |  |  | Asset Derivatives |  | Liability Derivatives
|  | Balance Sheet Location |  | September 30, 2025 |  | December 31, 2024 |  | September 30, 2025 |  | December 31, 2024
Derivatives in offsetting agreements: |  |  |  |  |  |  |  |
OTC contracts |  | Derivative assets (liabilities) |  | $ | 73 |  |  | $ | 51 |  |  | $ | (68) |  |  | $ | (57) |
Broker cleared derivative contracts |  | Other current assets (liabilities) |  | 311 |  |  | 212 |  |  | (237) |  |  | (236) |
Total gross derivatives |  | 384 |  |  | 263 |  |  | (305) |  |  | (293) |
Offsetting agreements: |  |  |  |  |  |  |  |
Counterparty netting |  | Derivative assets (liabilities) |  | (53) |  |  | (42) |  |  | 53 |  |  | 42 |
Counterparty netting |  | Other current assets (liabilities) |  | (233) |  |  | (204) |  |  | 233 |  |  | 204 |
Total net derivatives |  | $ | 98 |  |  | $ | 17 |  |  | $ | (19) |  |  | $ | (47) |
We disclose the non-exchange traded financial derivative instruments as derivative assets and liabilities on our consolidated balance sheets at fair value with amounts classified as either current or long-term depending on the anticipated settlement date.
Derivatives Not Designated as Hedging Instruments [Table Text Block] | The following table summarizes the location and amounts recognized in our consolidated statements of operations with respect to our derivative financial instruments:
| Location of Gain (Loss) Recognized on Income on Derivatives |  | Amount of Gain (Loss) Recognized in Income on Derivatives
|  |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |  |
Commodity derivatives | Cost of products sold |  | $ | 10 |  |  | $ | 163 |  |  | $ | 114 |  |  | $ | 148 |
Interest rate derivative(1) | Gain (loss) on interest rate derivative |  | — |  |  | (6) |  |  | — |  |  | 6 |
Total |  |  | $ | 10 |  |  | $ | 157 |  |  | $ | 114 |  |  | $ | 154 |
(1)This interest rate derivative was terminated by USAC in August 2024.
Schedule of Derivative Instruments [Table Text Block] | The following table details our outstanding commodity-related derivatives:
| September 30, 2025 |  | December 31, 2024
| Notional Volume |  | Maturity |  | Notional Volume |  | Maturity
Mark-to-Market Derivatives |  |  |  |  |  |  |
Natural Gas (BBtu): |  |  |  |  |  |  |
Fixed Swaps/Futures | (21,270) |  |  | 2025-2027 |  | 6,630 |  |  | 2025-2026
Basis Swaps IFERC/NYMEX | 63,445 |  |  | 2025-2028 |  | 3,490 |  |  | 2025-2027
Swing Swaps | (142,195) |  |  | 2025-2027 |  | (156,820) |  |  | 2025-2027
Power (Megawatt): |  |  |  |  |  |  |
Forwards | 50,800 |  |  | 2025-2029 |  | 6,040 |  |  | 2025-2029
Futures | 62,209 |  |  | 2025-2027 |  | (140,137) |  |  | 2025-2026
Options – Puts | 30,400 |  |  | 2025-2026 |  | (17,600) |  |  | 2025
Options – Calls | (500,000) |  |  | 2025-2026 |  | — |  |  | —
Crude (MBbls): |  |  |  |  |  |  |
Forwards/Swaps | (20,494) |  |  | 2025-2027 |  | (22,512) |  |  | 2025-2026
NGL/Refined Products (MBbls): |  |  |  |  |  |  |
Forward/Swaps | (20,129) |  |  | 2025-2028 |  | (15,063) |  |  | 2025-2027
Options – Puts | 6 |  |  | 2025-2026 |  | (9) |  |  | 2025-2026
Options – Calls | (1) |  |  | 2025-2026 |  | (14) |  |  | 2025-2026
Futures | (5,442) |  |  | 2025-2026 |  | (1,763) |  |  | 2025-2026
Fair Value Hedging Derivatives |  |  |  |  |  |  |
Natural Gas (BBtu): |  |  |  |  |  |  |
Basis Swaps IFERC/NYMEX | (47,840) |  |  | 2025-2026 |  | (47,170) |  |  | 2025
Fixed Swaps/Futures | (47,840) |  |  | 2025-2026 |  | (47,170) |  |  | 2025
Hedged Item – Inventory | 47,840 |  |  | 2025-2026 |  | 44,170 |  |  | 2025
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] | The following table provides a summary of our derivative assets and liabilities:
|  | Fair Value of Derivative Instruments
|  | Asset Derivatives |  | Liability Derivatives
|  | September 30, 2025 |  | December 31, 2024 |  | September 30, 2025 |  | December 31, 2024
Derivatives designated as hedging instruments: |  |  |  |  |  |  |  |
Commodity derivatives – margin deposits |  | $ | 40 |  |  | $ | 3 |  |  | $ | (17) |  |  | $ | (7) |
|  | 40 |  |  | 3 |  |  | (17) |  |  | (7) |
Derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |
Commodity derivatives – margin deposits |  | 271 |  |  | 209 |  |  | (220) |  |  | (229) |
Commodity derivatives |  | 73 |  |  | 51 |  |  | (68) |  |  | (57) |
|  | 344 |  |  | 260 |  |  | (288) |  |  | (286) |
Total derivatives |  | $ | 384 |  |  | $ | 263 |  |  | $ | (305) |  |  | $ | (293) |

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