CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Operating revenues:
Other		$ 19,031	$ 4,722	$ 24,304	$ 8,689
Total operating revenues		579,186	193,907	884,361	462,846
Operating costs and expenses:
Contract drilling		180,658	63,803	288,879	144,701
Pressure pumping		233,900	69,546	352,913	157,359
Other		12,671	1,650	15,930	3,740
Depreciation, depletion, amortization and impairment		219,328	170,975	375,545	347,745
Selling, general and administrative		23,478	17,087	42,330	35,059
Merger and integration expenses		51,193		56,349
Other operating income, net	[1]	(1,806)	(4,822)	(14,710)	(6,167)
Total operating costs and expenses		719,422	318,239	1,117,236	682,437
Operating loss		(140,236)	(124,332)	(232,875)	(219,591)
Other income (expense):
Interest income		642	100	1,048	210
Interest expense, net of amount capitalized		(9,075)	(10,678)	(17,345)	(21,478)
Other		131	17	148	33
Total other expense		(8,302)	(10,561)	(16,149)	(21,235)
Loss before income taxes		(148,538)	(134,893)	(249,024)	(240,826)
Income tax benefit		(56,354)	(49,027)	(93,301)	(84,457)
Net loss		$ (92,184)	$ (85,866)	$ (155,723)	$ (156,369)
Net loss per common share:
Basic		$ (0.46)	$ (0.58)	$ (0.86)	$ (1.06)
Diluted		$ (0.46)	$ (0.58)	$ (0.86)	$ (1.06)
Weighted average number of common shares outstanding:
Basic		201,204	145,944	180,747	145,857
Diluted		201,204	145,944	180,747	145,857
Cash dividends per common share		$ 0.02	$ 0.02	$ 0.04	$ 0.12
Contract Drilling
Operating revenues:
Oil and gas services		$ 270,111	$ 115,235	$ 428,839	$ 283,894
Pressure Pumping
Operating revenues:
Oil and gas services		$ 290,044	$ 73,950	$ 431,218	$ 170,263

[1] Other operating income includes net gains associated with the disposal of assets related to corporate strategy decisions of the executive management group. Accordingly, the related gains have been excluded from the operating results of specific segments. This caption also includes expenses related to certain legal settlements net of insurance reimbursements.