Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 36,217	$ 90,300
Trade accounts receivable, net of allowance of $2,208 and $1,838, respectively	99,626	144,767
Income tax receivable	0	1,574
Inventories, net	20,262	29,951
Prepaid expenses	6,407	8,990
Assets held for sale	55,149	18,106
Other current assets	2,727	1,521
Total current assets	220,388	295,209
Property and equipment, net	297,113	309,170
Operating lease right of use assets	14,540
Deferred debt costs, net of amortization	2,198	2,747
Other intangible assets, net of amortization	2,603	2,984
Assets held for future sale	0	139,631
Other assets	13,632	12,036
Total assets	550,474	761,777
Current liabilities:
Accounts payable	58,022	98,323
Accrued expenses	48,116	44,955
Current portion of long-term debt	18,738	19,582
Operating lease right-of-use liabilities, current portion	4,906
Accrued short-term insurance reserves	8,848	10,871
Liabilities associated with assets held for sale	5,248	0
Other current liabilities	4,306	3,123
Total current liabilities	148,184	176,854
Long-term debt, net of discounts and deferred financing costs of $8,795 and $10,690, at December 31, 2019 and 2018, respectively	308,365	319,175
Operating lease right-of-use liabilities, long-term portion	9,634
Asset retirement obligations	9,044	2,587
Accrued long-term insurance reserves	16,582	16,280
Other long-term liabilities	17,542	16,470
Liabilities associated with assets held for future sale	0	10,983
Total liabilities	509,351	542,349
Stockholders' equity:
Preferred stock, $0.01 par value: 5,000,000 shares authorized; zero outstanding at December 31, 2019 and 2018	0	0
Common stock, $0.01 par value: 80,000,000 shares authorized 27,912,059 and 26,990,034 shares issued and 24,904,485 and 26,747,712 shares outstanding at December 31, 2019 and 2018, respectively	279	270
Additional paid-in capital	472,594	464,264
Retained deficit	(423,169)	(241,271)
Treasury stock, at cost 3,007,574 and 242,322 shares at December 31, 2019 and 2018, respectively	(8,581)	(3,835)
Total stockholders' equity	41,123	219,428
Total liabilities and stockholder's equity	$ 550,474	$ 761,777