12. Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2015

Asset Retirement Obligation Disclosure [Abstract]

Asset retirement obligations

AROs on a roll-forward basis were as follows:

	September 30,			December 31,
	2015			2014
Asset retirement obligations, at the beginning of the period	$	1,866,770		$	1,597,661
New asset retirement obligations and adjustments		49			300,980
Liabilities settled		(58,459	)		(243,866	)
Accretion expense		158,655			211,995
		1,967,015			1,866,770
Less:  current portion of asset retirement obligations		(38,644	)		(85,846	)
Long-term asset retirement obligations, at the end of the period	$	1,928,371		$	1,780,924