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Hedging Activities (Schedule Of Derivative Instruments) (Details) (Scenario, Forecast [Member])
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6 Months Ended | 9 Months Ended |
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Jun. 30, 2013
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Dec. 31, 2012
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Scenario, Forecast [Member]
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| Daily Volume (Bbls/day) | 1,000 | 3,000 |
| Weighted Average Price | 113.20 | 109.73 |
| X | ||||||||||
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- Definition
Production volume per day in barrels under contract. No definition available.
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| X | ||||||||||
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- Definition
Average fixed price related to the group of price risk swap derivatives. No definition available.
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