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Derivatives and Risk Management Activities (Details) | Dec. 31, 2012 bbl
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Commodity Price Risk Hedging: |
Storage capacity owned but not used in entity's transportation operations (in barrels) | 96,000,000
Derivative hedges to manage the risk of not utilizing storage capacity (in barrels per month) | 1,900,000
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 12,000,000
Net long crude oil derivative position |
Commodity Price Risk Hedging: |
Net derivative positions per day (in barrels) | 160,600
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 5,000,000
Net short spread position hedging anticipated crude oil lease gathering purchases |
Commodity Price Risk Hedging: |
Net derivative positions per day (in barrels) | 15,700
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 7,600,000
WTS/WTI crude oil basis swaps related to anticipated sales of crude oil |
Commodity Price Risk Hedging: |
Net derivative positions per day (in barrels) | 11,700
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 4,200,000
LLS/WTI crude oil basis swaps |
Commodity Price Risk Hedging: |
Net derivative positions per day (in barrels) | 2,700
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 1,000,000
Average butane/WTI spread positions |
Commodity Price Risk Hedging: |
Net derivative positions per day (in barrels) | 1,100
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 500,000
PLA Average crude oil net short position futures and swaps |
Commodity Price Risk Hedging: |
Net derivative positions per day (in barrels) | 1,500
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 1,700,000
Long natural gas swaps position for natural gas purchases |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 16,000,000
Short propane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 2,800,000
Short Butane position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 800,000
Short WTI position related to subsequent sale of products |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 300,000
PLA Crude oil long put option position |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 200,000
PLA Crude oil long call option position |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 600,000
Long natural gas swaps position for anticipated base gas requirements |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 4,200,000
Short natural gas swap position related to anticipated natural gas sales |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 20,400,000
Swaps for anticipated purchases of Diesel Fuel |
Commodity Price Risk Hedging: |
Net derivative positions per day (in barrels) | 800
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 300,000
Long power position for power supply requirements |
Commodity Price Risk Hedging: |
Crude oil, NGL or natural gas inventory hedged (in barrels, Mcf or megawatt hours) | 800,000

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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