Business Segments - Summary of Operations in Different Segments (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenue	$ 27,220,818	$ 18,365,558
Income (Loss) from operations	(1,349,283)	3,178,515
Interest expense	19,782,603	15,047,619
Depreciation, depletion, amortization and accretion	9,702,192	5,752,361
Property and equipment acquisitions, including oil and gas properties	32,717,617	29,717,743
Total assets, net of intercompany accounts	111,769,145	90,115,321
Operating Segments [Member] | Exploration and Production [Member]
Segment Reporting Information [Line Items]
Revenue	26,969,359	18,174,524
Income (Loss) from operations	11,187,962	9,302,666
Interest expense	19,776,017	15,047,619
Depreciation, depletion, amortization and accretion	9,701,086	5,751,781
Property and equipment acquisitions, including oil and gas properties	32,709,147	29,698,602
Total assets, net of intercompany accounts	111,755,587	90,098,192
Operating Segments [Member] | Pipeline Transmission [Member]
Segment Reporting Information [Line Items]
Revenue	161,975	158,937
Income (Loss) from operations	(172)	70,263
Depreciation, depletion, amortization and accretion	1,106	580
Property and equipment acquisitions, including oil and gas properties		10,000
Total assets, net of intercompany accounts	13,558	17,129
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Revenue	89,484	32,097
Income (Loss) from operations	(12,537,073)	(6,194,414)
Interest expense	6,586
Property and equipment acquisitions, including oil and gas properties	$ 8,470	$ 9,141