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Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Detail) | Jun. 30, 2013 MMBTU
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Collars | Natural Gas 2013 |
Derivative [Line Items] |
Volume Hedged | 280,000
Average floor price | 4.59
Average cap price | 5.05
Collars | Natural Gas 2014 |
Derivative [Line Items] |
Volume Hedged | 447,500
Average floor price | 3.84
Average cap price | 4.48
Collars | Natural Gas 2015 |
Derivative [Line Items] |
Volume Hedged | 145,000
Average floor price | 4.07
Average cap price | 4.56
Collars | Crude Oil 2013 |
Derivative [Line Items] |
Volume Hedged | 3,000
Average floor price | 90.60
Average cap price | 100.00
Collars | Crude Oil 2014 |
Derivative [Line Items] |
Volume Hedged | 2,000
Average floor price | 85.55
Average cap price | 100.00
Swaps | Natural Gas 2013 |
Derivative [Line Items] |
Volume Hedged | 296,685
Average hedge price | 3.79
Swaps | Natural Gas 2014 |
Derivative [Line Items] |
Volume Hedged | 30,000
Average hedge price | 4.17
Swaps | Crude Oil 2013 |
Derivative [Line Items] |
Volume Hedged | 6,325
Average hedge price | 96.77
Swaps | Crude Oil 2014 |
Derivative [Line Items] |
Volume Hedged | 7,000
Average hedge price | 94.14
Swaps | Crude Oil 2015 |
Derivative [Line Items] |
Volume Hedged | 2,000
Average hedge price | 90.20
Swaps | NGLs Propane 2013 |
Derivative [Line Items] |
Volume Hedged | 8,000
Average hedge price | 36.79
Swaps | NGLs Propane 2014 |
Derivative [Line Items] |
Volume Hedged | 1,000
Average hedge price | 40.32
Sold Swap | NGLs Natural Gasoline 2013 |
Derivative [Line Items] |
Volume Hedged | 8,000
Average hedge price | 89.64
Re-purchased Swaps | NGLs Natural Gasoline 2013 |
Derivative [Line Items] |
Volume Hedged | 1,500
Average hedge price | 76.30

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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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- Definition The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. + References No definition available. + Details
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- Definition The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. + References No definition available. + Details
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- Details
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- Definition Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
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