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Oil and natural gas properties (under successful efforts accounting) (Details Narrative) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Extractive Industries [Abstract]        
Depreciation, depletion, accretion, and amortization expense $ 84,423 $ 81,952 $ 335,437 $ 252,024
Impairment of oil and natural gas properties $ 3,152 $ 0 $ 309,539 $ 0