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Derivatives and Risk Management Activities - Commodity Price Risk Hedging (Details) bbl in Millions | 12 Months Ended
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Dec. 31, 2020 TWh bbl MMBbls Bcf
Net long position associated with crude oil purchases |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | 5.8
Net short time spread position hedging anticipated crude oil lease gathering purchases |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | 6.6
Net crude oil grade basis position |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | 0.6
Net short position related to anticipated net sales of crude oil and NGL inventory |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | 37.4
Long natural gas position for natural gas purchases for processing and operational needs |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | Bcf | 37.3
Short propane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | MMBbls | 6.3
Short butane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | MMBbls | 2.3
Short condensate WTI position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | MMBbls | 0.6
Long fuel gas position for fuel gas requirements |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Bcf) | Bcf | 14.3
Long power position for power supply requirements |
Commodity Price Risk Hedging: |
Derivative position notional amount (in terawatt hours) | TWh | 0.7

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