Asset Retirement Obligations

3 Months Ended

Mar. 31, 2016

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

7. ASSET RETIREMENT OBLIGATIONS

The following table summarizes the changes in the reserve for future restoration and reclamation costs on the balance sheet:

	March 31, 2016			December 31, 2015
Balance, beginning of period	$	4,468		$	4,196
Liabilities settled		(39	)		(178	)
Accretion expense		120			450
Balance, end of period		4,549			4,468
Less: Current portion		(121	)		(121	)
Less: Liabilities held for sale		(105	)		(105	)
Non-current portion	$	4,323		$	4,242

The Company is currently performing surface reclamation activities at its Rosita project located in Duval County, Texas. The Company’s current liability of $0.1 million consists of the estimated costs associated with current plugging and abandonment activities and planned surface reclamation activities through March 2017 at the Company’s Rosita project.