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Properties and Equipment
6 Months Ended
Jun. 30, 2011
Properties and Equipment [Abstract]  
PROPERTIES AND EQUIPMENT
B — PROPERTIES AND EQUIPMENT
     Under the full cost method of accounting, the net book value of oil and natural gas properties, less related deferred income taxes, may not exceed the estimated after-tax future net revenues from proved oil and natural gas properties, discounted at 10% (the “Ceiling Limitation”). In arriving at estimated future net revenues, estimated lease operating expenses, development costs, and certain production-related and ad valorem taxes are deducted. In calculating future net revenues, prices and costs are held constant indefinitely, except for changes that are fixed and determinable by existing contracts. The net book value is compared to the Ceiling Limitation on a quarterly and yearly basis. The excess, if any, of the net book value above the Ceiling Limitation is charged to expense in the period in which it occurs and is not subsequently reinstated. At June 30, 2011 and 2010, the net book value of the Company’s oil and natural gas properties did not exceed the Ceiling Limitation.