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Derivatives and Risk Management Activities (Details) bbl in Millions, Mcf in Millions, MWh in Millions | 9 Months Ended
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Sep. 30, 2015 MMBbls / mo bbl / d MWh Mcf bbl
Net long position associated with crude oil purchases |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | bbl / d | 159,000
Derivative position notional amount (in barrels or Mcf) | 4.9
Net short time spread position hedging anticipated crude oil lease gathering purchases |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | bbl / d | 12,900
Derivative position notional amount (in barrels or Mcf) | 5.9
Crude oil grade spread positions |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | bbl / d | 8,200
Derivative position notional amount (in barrels or Mcf) | 2.2
Net short position related to anticipated sales of natural gas inventory and base gas requirements |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Mcf) | Mcf | 15.8
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 Mcf) | 22.7
Positions hedging risk of not utilizing storage capacity |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per month (in millions of barrels) | MMBbls / mo | 2.0
PLA crude oil net short position |
Commodity Price Risk Hedging: |
Average derivative positions notional amount per day (in barrels) | bbl / d | 400
Derivative position notional amount (in barrels or Mcf) | 0.2
PLA crude oil long call option position |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Mcf) | 1.7
Long natural gas position for natural gas purchases |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Mcf) | Mcf | 9.7
Short propane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Mcf) | 2.2
Short butane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Mcf) | 0.6
Short WTI position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Derivative position notional amount (in barrels or Mcf) | 0.2
Long power position for power supply requirements |
Commodity Price Risk Hedging: |
Derivative position notional amount (in megawatt hours) | MWh | 0.5

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