Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Drilling Services Revenue	$ 58,559	$ 127,553		$ 156,974	$ 245,510
Production Services Revenue	76,452	132,259		171,851	253,336
Revenues	135,011	259,812		328,825	498,846
Costs and expenses:
Drilling Services Costs and Expenses	32,815	84,022		95,111	161,941
Production Services Costs and Expenses	53,106	82,576		121,874	160,147
Depreciation and amortization	38,489	45,791		80,271	91,317
General and administrative	18,363	25,276		40,223	49,759
Bad debt expense	394	561		713	437
Impairment charges	71,329	0		77,319	0
Gain on dispositions of property and equipment	(4,377)	(331)		(3,244)	(1,731)
Gain on litigation	0	0		0	(2,876)
Total costs and expenses	210,119	237,895		412,267	458,994
Income (loss) from operations	(75,108)	21,917		(83,442)	39,852
Other income (expense):
Interest expense, net of interest capitalized	(5,245)	(10,728)		(10,700)	(23,116)
Loss on extinguishment of debt	0	(14,595)	$ (7,900)	0	(22,482)
Other	486	2,017		(2,194)	1,815
Total other (expense) income	(4,759)	(23,306)		(12,894)	(43,783)
Income (loss) before income taxes	(79,867)	(1,389)		(96,336)	(3,931)
Income tax benefit	2,586	1,070		7,036	1,033
Net loss	$ (77,281)	$ (319)		$ (89,300)	$ (2,898)
Loss per common share - Basic	$ (1.20)	$ (0.01)		$ (1.39)	$ (0.05)
Loss per common share - Diluted	$ (1.20)	$ (0.01)		$ (1.39)	$ (0.05)
Weighted average number of shares outstanding - Basic	64,342	62,877		64,168	62,710
Weighted-average number of shares outstanding - Diluted	64,342	62,877		64,168	62,710