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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Outstanding Commodity Derivatives (Detail) (Crude Oil Price Swap Agreements)	Jun. 30, 2013 bbl
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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