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Supplementary Information on Oil And Gas Producing Activities (Unaudited) - Summary of Principal Changes in the Aggregate Standardized Measure of Discounted Future Net Cash Flows (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Extractive Industries [Abstract]    
Standardized Measure, Beginning of Year $ 34,295,000 $ 33,002,000
Oil and gas sales, net of production costs (8,648,780) (5,187,428)
Changes in prices and future production 2,402,924 (1,430,105)
Extensions, discoveries and improved recovery, net of costs 21,245,578 20,268,426
Sales of Minerals in place-leaseholds (7,591,348)  
Change in estimated future development costs 18,845,514 (18,845,514)
Previously estimated development costs incurred      
Revisions of previous quantity estimates (25,123,031) 2,609,337
Accretion of Discount 3,429,500 3,300,200
Net change in income taxes (365,365) (4,900,391)
Timing and Other 5,824,008 5,478,475
Standardized Measure, End of Year $ 44,314,000 $ 34,295,000