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Subsequent Event (Preliminary Purchase Price Allocation) (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2012
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Dec. 31, 2011
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| Subsequent Event [Line Items] | ||
| Allocation to unproved properties | $ 158,585 | $ 154,516 |
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Oil And Gas [Member]
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| Subsequent Event [Line Items] | ||
| Allocation to unproved properties | $ 13,100 |
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- Details
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- Definition
The estimated (or appraised) value of leases or parts of leases to which proved reserves cannot be attributable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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