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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Outstanding Commodity Derivatives (Detail) (Crude Oil Price Swap Agreements) | Jun. 30, 2013 bbl
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Crude Oil Price Swap Agreements |
Derivative [Line Items] |
Commodity Derivatives Weighted Average Contract Price | 98.69
Commodity Derivatives Volume | 1,040,000
Commodity Derivatives Beginning of Contract Period | July 2013
Commodity Derivatives End of Contract Period | December 2013

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