ASSET RETIREMENT OBLIGATIONS (Tables)

9 Months Ended

Sep. 30, 2020

ASSET RETIREMENT OBLIGATION

Schedule of Asset Retirement Obligations

Aggregate carrying amounts of asset retirement obligations and environmental reclamation obligations are as follows (dollars in thousands):

	Nine Months Ended
		September 30,
		2020
Obligations at beginning of period		$	78,914
Liabilities incurred			—
Liabilities settled			(824)
Accretion expense			1,895
Change in cash flow estimate			3,158
Total obligations at end of period		$	83,143
Less current obligations at end of period			(2,840)
Long-term obligations at end of period		$	80,303