Consolidated Balance Sheet - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 9,703	$ 14,160
Receivables:
Trade, net of allowance for doubtful accounts	38,185	47,577
Unbilled receivables	3,968	13,624
Insurance recoveries	17,298	14,556
Other receivables	2,761	4,059
Inventory	8,254	9,262
Assets held for sale	6,243	4,619
Prepaid expenses and other current assets	4,730	7,411
Total current assets	91,142	115,268
Property and equipment, at cost	1,111,500	1,146,994
Less accumulated depreciation	482,336	444,409
Net property and equipment	629,164	702,585
Intangible assets, net of accumulated amortization of $13.1 million and $12.3 million at September 30, 2016 and December 31, 2015, respectively	781	1,944
Other long-term assets	1,710	2,196
Total assets	722,797	821,993
Current liabilities:
Accounts payable	13,014	16,951
Deferred revenues	1,157	6,222
Accrued expenses:
Payroll and related employee costs	13,981	13,859
Insurance premiums and deductibles	6,437	8,087
Insurance claims and settlements	13,952	14,556
Interest	900	5,508
Other	5,568	4,859
Total current liabilities	55,009	70,042
Long-term debt, less debt issuance costs	399,508	387,217
Deferred income taxes	13,439	17,520
Other long-term liabilities	3,737	4,571
Total liabilities	471,693	479,350
Commitments and contingencies (Note 9)
Shareholders' equity:
Preferred stock, 10,000,000 shares authorized; none issued and outstanding	0	0
Common stock $.10 par value; 100,000,000 shares authorized; 65,071,906 and 64,497,915 shares outstanding at September 30, 2016 and December 31, 2015, respectively	6,559	6,496
Additional paid-in capital	476,655	475,823
Treasury stock, at cost; 515,546 and 458,170 shares at September 30, 2016 and December 31, 2015, respectively	(3,883)	(3,759)
Accumulated deficit	(228,227)	(135,917)
Total shareholders' equity	251,104	342,643
Total liabilities and shareholders' equity	$ 722,797	$ 821,993