11. Derivative Instruments (Details-Derivative Gains and Losses)	6 Months Ended
	Jun. 30, 2016 USD ($)
Realized gain (loss) on derivatives, net	$ 1,043,026
Gain (loss) on the mark-to-market of derivatives, net	(4,288,736)
Crude Oil Fixed Price Swap [Member]
Realized gain (loss) on derivatives, net	922,872
Gain (loss) on the mark-to-market of derivatives, net	(4,157,491)
Crude Oil Collars [Member]
Realized gain (loss) on derivatives, net	120,154
Gain (loss) on the mark-to-market of derivatives, net	$ (131,245)