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Description Of Business And Significant Accounting Policies (Narrative) (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Description Of Business And Significant Accounting Policies [Abstract]      
Material natural gas imbalances $ 0   $ 0
Methane gas revenue 0 $ 0  
Unevaluated properties $ 552,000   $ 552,000
Current cost discount 10.00%    
Impairment $ 641,000 $ 0