Supplemental Oil and gas Reserve Information (Unaudited)(Standardized Measure of Discounted Future Net Cash Flows) (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Future production revenue	$ 282,557,900	$ 413,965,250
Future production costs	(101,119,500)	(122,957,721)
Future development costs	(13,736,500)	(20,017,885)
Future cash flows before income tax	167,701,900	270,989,644
Future income taxes	(4,211,005)	(56,111,563)
Future net cash flows	163,490,895	214,878,081
10% annual discount for estimating of future cash flows	(100,787,044)	(133,430,425)
Standardized measure of discounted net cash flows	$ 62,703,851	$ 81,447,656

The future cost of producing oil and gas from proved reserves located in this geographic region.

No definition available.

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This amount is the future net cash flows less the computed discount.

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Amount of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.

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Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves.

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Amount of estimated future accumulated cash outflow for income tax, based on the future income less future expense derived from production and sale of proved oil and gas reserves.

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Amount, after future accumulated cash outflow for development and production costs and future income tax, of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.

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Amount of estimated future accumulated cash outflow for costs to be incurred in producing proved oil and gas reserves.

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Amount of discount on future accumulated cash inflow, after deducting future accumulated cash outflow for development and production costs and future income tax, from sale of proved oil and gas reserves, using a discount rate of ten percent a year.

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