Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Total revenues	$ 141,610	$ 189,247	$ 391,970	$ 644,564
Expenses:
Expenses	116,271	154,930	332,951	506,815
General and administrative, including stock-based compensation of $2,238 and $3,298 in three months ended September 30, 2016 and 2015, and $7,355 and $10,537 in the nine months ended September 30, 2016 and 2015, respectively	30,065	35,984	86,706	110,861
Restructuring costs	10,470	0	10,470	0
Depreciation and amortization	53,142	60,328	164,141	181,488
Goodwill impairment	646	81,877	646	81,877
Loss (gain) on disposal of assets	(128)	1,128	133	1,119
Total expenses	210,466	334,247	595,047	882,160
Operating loss	(68,856)	(145,000)	(203,077)	(237,596)
Other income (expense):
Interest expense	(23,953)	(17,242)	(67,188)	(50,945)
Interest income	14	7	23	17
Bargain purchase gain on acquisition	662	0	662	0
Other income	37	114	378	449
Loss before income taxes	(92,096)	(162,121)	(269,202)	(288,075)
Income tax benefit (expense)	(1)	56,479	3,883	101,514
Net loss	$ (92,097)	$ (105,642)	$ (265,319)	$ (186,561)
Loss per share of common stock:
Basic (dollars per share)	$ (2.16)	$ (2.63)	$ (6.32)	$ (4.61)
Diluted (dollars per share)	$ (2.16)	$ (2.63)	$ (6.32)	$ (4.61)
Operating Segments | Completion and remedial services
Revenues:
Total revenues	$ 49,425	$ 67,240	$ 125,348	$ 249,070
Expenses:
Expenses	40,292	56,165	107,941	195,086
Depreciation and amortization	18,383	21,163	56,782	63,518
Operating Segments | Fluid services
Revenues:
Total revenues	47,178	62,631	142,919	200,138
Expenses:
Expenses	39,268	47,706	119,053	150,218
Depreciation and amortization	15,584	17,638	48,133	52,989
Operating Segments | Well servicing
Revenues:
Total revenues	43,160	55,533	118,891	175,701
Expenses:
Expenses	35,028	47,877	101,345	147,314
Depreciation and amortization	13,491	15,061	41,669	45,582
Operating Segments | Contract drilling
Revenues:
Total revenues	1,847	3,843	4,812	19,655
Expenses:
Expenses	1,683	3,182	4,612	14,197
Depreciation and amortization	$ 3,109	$ 3,536	$ 9,603	$ 10,601