Supplementary Financial Information on Oil and Natural Gas Exploration, Development and Production Activities (Unaudited) - Changes in Standardized Measure of Future Net Cash Flows (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Increase (decrease)
Sale of gas and oil, net of operating expenses	$ (458,144)	$ (470,244)
Discoveries, extensions and improved recovery, net of future production and development costs	0	0
Accretion of discount	146,500	242,210
Net increase (decrease)	(311,644)	(228,034)
Standardized measure of discounted future cash flows:
Beginning of the year	872,130	1,464,570	$ 2,422,100
Before Income Taxes	872,130	1,464,570
Income Taxes	(287,358)	(500,586)
End of the year	$ 584,772	963,984
Ownership percentage by noncontrolling owners	50.00%
Consolidated Entities
Standardized measure of discounted future cash flows:
Beginning of the year	$ 436,065	732,285
End of the year	$ 292,386	$ 481,992