Consolidated Balance Sheet - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 14,160	$ 34,924
Receivables:
Trade, net of allowance for doubtful accounts	47,577	136,161
Unbilled receivables		38,000
Insurance recoveries	14,556	10,900
Other receivables	4,059	5,138
Deferred income taxes	0	10,998
Inventory	9,262	14,117
Assets held for sale	4,619	9,909
Prepaid expenses and other current assets	7,411	8,925
Total current assets	115,268	269,074
Property and equipment, at cost	1,146,994	1,702,273
Less accumulated depreciation	444,409	845,732
Net property and equipment	702,585	856,541
Intangible assets, net of accumulated amortization	1,944	24,223
Noncurrent deferred income taxes	18	2,753
Other long-term assets	9,961	18,998
Total assets	829,776	1,171,589
Current liabilities:
Accounts payable	16,951	64,305
Current portion of long-term debt	0	27
Deferred revenues	6,222	3,315
Accrued expenses:
Payroll and related employee costs	13,859	40,058
Insurance premiums and deductibles	8,087	12,829
Insurance claims and settlements	14,556	10,900
Interest	5,508	5,432
Other	4,859	10,326
Total current liabilities	70,042	147,192
Long-term debt, less current portion	395,000	455,053
Noncurrent deferred income taxes	17,520	69,578
Other long-term liabilities	4,571	4,702
Total liabilities	$ 487,133	$ 676,525
Commitments and contingencies (Note 12)
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; 64,497,915 and 63,820,126 shares outstanding at December 31, 2015 and December 31, 2014, respectively	6,496	6,414
Additional paid-in capital	475,823	472,457
Treasury stock, at cost; 458,170 and 317,103 shares at December 31, 2015 and December 31, 2014, respectively	(3,759)	(3,030)
Accumulated earnings (deficit)	(135,917)	19,223
Total shareholders' equity	342,643	495,064
Total liabilities and shareholders' equity	$ 829,776	$ 1,171,589