Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues:
Drilling Services Revenue	$ 33,184	$ 98,415
Production Services Revenue	41,768	95,399
Revenues	74,952	193,814
Costs and expenses:
Drilling Services Costs and Expenses	17,440	62,295
Production Services Costs and Expenses	34,849	68,769
Depreciation and amortization	29,824	41,782
General and administrative	16,508	21,860
Bad debt expense (recovery)	(55)	319
Impairment charges	0	5,990
Loss (gain) on dispositions of property and equipment	(600)	1,133
Total costs and expenses	97,966	202,148
Income (loss) from operations	(23,014)	(8,334)
Other (expense) income:
Interest expense, net of interest capitalized	(6,254)	(5,455)
Other	(389)	(2,680)
Total other (expense) income	(6,643)	(8,135)
Income (loss) before income taxes	(29,657)	(16,469)
Income tax expense (benefit)	1,958	4,450
Net income (loss)	$ (27,699)	$ (12,019)
Income (loss) per common share - Basic	$ (0.43)	$ (0.19)
Income (loss) per common share - Diluted	$ (0.43)	$ (0.19)
Weighted average number of shares outstanding - Basic	64,576	63,991
Weighted-average number of shares outstanding - Diluted	64,576	63,991