XML 41 R71.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Detail) | Dec. 31, 2013 MMBTU
--- | ---
Natural Gas 2014 | Collars |
Derivative [Line Items] |
Volume Hedged | 447,500
Average floor price | 3.84
Average cap price | 4.48
Natural Gas 2014 | Swaps |
Derivative [Line Items] |
Volume Hedged | 219,397
Average hedge price | 4.17
Natural Gas 2015 | Collars |
Derivative [Line Items] |
Volume Hedged | 145,000
Average floor price | 4.07
Average cap price | 4.56
Natural Gas 2015 | Swaps |
Derivative [Line Items] |
Volume Hedged | 154,966
Average hedge price | 4.16
Natural Gas 2016 | Swaps |
Derivative [Line Items] |
Volume Hedged | 20,000
Average hedge price | 4.16
Crude Oil 2014 | Collars |
Derivative [Line Items] |
Volume Hedged | 2,000
Average floor price | 85.55
Average cap price | 100.00
Crude Oil 2014 | Swaps |
Derivative [Line Items] |
Volume Hedged | 9,004
Average hedge price | 94.43
Crude Oil 2015 | Swaps |
Derivative [Line Items] |
Volume Hedged | 4,000
Average hedge price | 89.60
NGLs (C3 - Propane) 2014 | Swaps |
Derivative [Line Items] |
Volume Hedged | 11,000
Average hedge price | 1.01
NGLs (NC4 - Normal Butane) 2014 | Swaps |
Derivative [Line Items] |
Volume Hedged | 3,000
Average hedge price | 1.33
NGLs (C5 - Natural Gasoline) 2014 | Swaps |
Derivative [Line Items] |
Volume Hedged | 1,000
Average hedge price | 2.11

X
- 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
Name: | invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_DerivativeAverageCapPrice
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- 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
Name: | us-gaap_DerivativeAverageFloorPrice
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
Name: | us-gaap_DerivativeSwapTypeAverageFixedPrice
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant