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(6) Equity Investment in Savoy (Details) - Savoy: Oil and Gas Reserves 2 (Parentheticals) | Dec. 31, 2013
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Proved Developed |
Reserve Quantities [Line Items] |
Annual discount for estimated timing of cash flows | 10.00%
PUDs |
Reserve Quantities [Line Items] |
Annual discount for estimated timing of cash flows | 10.00%
Total Proved |
Reserve Quantities [Line Items] |
Annual discount for estimated timing of cash flows | 10.00%

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