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Oil And Gas Properties (Details) (USD $)
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Oil And Gas Properties [Abstract]      
Oil and gas properties, at cost $ 44,203,000   $ 43,351,000
Unevaluated properties 344,000   457,000
Accumulated depletion (21,077,000)   (19,108,000)
Oil and gas properties, net 23,470,000   24,700,000
Depletion expense $ 1,969,000 $ 2,237,000