Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues:
Drilling Services Revenue	$ 128,117	$ 131,033	$ 373,627	$ 402,357
Production Services Revenue	145,150	112,946	398,486	319,646
Revenues	273,267	243,979	772,113	722,003
Costs and expenses:
Drilling Services Costs and Expenses	88,848	89,350	248,948	267,630
Production Services Costs and Expenses	90,250	72,115	250,507	203,184
Depreciation and amortization	46,081	47,414	137,398	141,047
General and administrative	26,613	23,691	76,372	70,350
Gain on sale of fishing and rental services operations	(10,702)	0	(10,702)	0
Bad debt expense	19	35	456	453
Impairment charges	678	9,504	678	54,292
Total costs and expenses	241,787	242,109	703,657	736,956
Income (loss) from operations	31,480	1,870	68,456	(14,953)
Other (expense) income:
Interest expense	(8,969)	(12,324)	(32,085)	(36,117)
Loss on extinguishment of debt	0	0	(22,482)	0
Other	(131)	610	4,560	(1,460)
Total other income (expense)	(9,100)	(11,714)	(50,007)	(37,577)
Income (loss) before income taxes	22,380	(9,844)	18,449	(52,530)
Income tax (expense) benefit	(9,927)	3,614	(8,894)	19,113
Net income (loss)	$ 12,453	$ (6,230)	$ 9,555	$ (33,417)
Income (loss) per common share - Basic (USD per share)	$ 0.20	$ (0.10)	$ 0.15	$ (0.54)
Income (loss) per common share - Diluted (USD per share)	$ 0.19	$ (0.10)	$ 0.15	$ (0.54)
Weighted average number of shares outstanding - Basic	63,451	62,325	62,960	62,158
Weighted-average number of shares outstanding - Diluted	65,876	62,325	65,167	62,158