Derivatives and Risk Management Activities - Commodity Price Risk Hedging (Details) bbl in Millions	6 Months Ended
	Jun. 30, 2025 TWh bbl
Crude oil purchases | Long
Commodity Price Risk Hedging:
Derivative position notional amount (in barrels or Bcf)	5.1
Time spread on hedging anticipated crude oil lease gathering purchases | Short
Commodity Price Risk Hedging:
Derivative position notional amount (in barrels or Bcf)	3.2
Crude oil basis spread position
Commodity Price Risk Hedging:
Derivative position notional amount (in barrels or Bcf)	2.6
Anticipated net sales of crude oil and NGL inventory | Short
Commodity Price Risk Hedging:
Derivative position notional amount (in barrels or Bcf)	5.1
Power supply requirements | Long
Commodity Price Risk Hedging:
Derivative position notional amount (in terawatt hours) | TWh	0.5