Consolidated Condensed Statements of Operations (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues:
International Drilling	$ 51,352	$ 53,614	$ 136,107	$ 170,421
U.S. Drilling	28,895	14,929	70,876	45,352
Rental Tools	62,388	48,114	173,197	123,288
Project Management and Engineering Services	33,954	27,599	115,762	78,403
Construction Contract		27,773	9,638	68,695
Total revenues	176,589	172,029	505,580	486,159
Operating expenses:
International Drilling	36,775	51,312	105,378	137,908
U.S. Drilling	17,429	13,287	48,307	39,801
Rental Tools	18,682	16,583	54,539	43,477
Project Management and Engineering Services	26,026	20,378	93,651	61,640
Construction Contract		28,122	8,867	69,362
Depreciation and amortization	27,581	28,904	82,511	86,504
Total operating expenses	126,493	158,586	393,253	438,692
Total operating gross margin	50,096	13,443	112,327	47,467
General and administration expense	(8,760)	(7,064)	(23,742)	(24,033)
Gain on disposition of assets, net	623	1,176	1,993	3,560
Total operating income (loss)	41,959	7,555	90,578	26,994
Other income and (expense):
Interest expense	(5,591)	(6,391)	(17,208)	(20,509)
Interest income	29	46	208	198
Loss on fair value of derivative contracts	(49)		(186)
Loss on extinguishment of debt				(7,209)
Other	(657)	68	(522)	325
Total other expense	(6,268)	(6,277)	(17,708)	(27,195)
Income (loss) before income taxes	35,691	1,278	72,870	(201)
Income tax expense (benefit):
Current	2,500	(3,104)	13,609	5,536
Deferred	12,542	3,890	19,736	(4,685)
Total income tax expense (benefit)	15,042	786	33,345	851
Net income (loss)	20,649	492	39,525	(1,052)
Less: Net (loss) attributable to noncontrolling interest	(76)		(202)
Net income (loss) attributable to controlling interest	$ 20,725	$ 492	$ 39,727	$ (1,052)
Basic earnings (loss) per share:
Net income (loss)	$ 0.18	$ 0	$ 0.34	$ (0.01)
Diluted earnings (loss) per share:
Net income (loss)	$ 0.18	$ 0	$ 0.34	$ (0.01)
Weighted average shares outstanding:
Basic	116,416,011	114,507,431	115,899,959	114,111,198
Diluted	117,425,764	116,235,867	116,912,367	114,111,198