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SEGMENT REPORTING (Tables)

6 Months Ended

Jun. 30, 2011

SEGMENT REPORTING

Reconciliation of third party revenues to direct revenues

		For the Three Months Ended June 30, 2011
		Technical Services			Field Services			Industrial Services			Oil and Gas Field Services			Corporate Items			Totals
Third party revenues		$	202,330		$	72,615		$	111,376		$	60,617		$	297		$	447,235
Intersegment revenues, net		4,210			(5,623		)	(1,087		)	2,964			(464		)	—
Direct revenues		$	206,540		$	66,992		$	110,289		$	63,581		$	(167	)	$	447,235

		For the Three Months Ended June 30, 2010
		Technical Services			Field Services (1)			Industrial Services			Oil and Gas Field Services			Corporate Items			Totals
Third party revenues		$	167,409		$	162,723		$	98,804		$	42,663		$	40		$	471,639
Intersegment revenues, net		7,137			(9,086		)	(405		)	2,715			(361		)	—
Direct revenues		$	174,546		$	153,637		$	98,399		$	45,378		$	(321)		$	471,639

		For the Six Months Ended June 30, 2011
		Technical Services			Field Services			Industrial Services			Oil and Gas Field Services			Corporate Items			Totals
Third party revenues		$	387,777		$	134,874		$	219,959		$	139,251		$	336		$	882,197
Intersegment revenues, net		9,351			(9,574		)	(3,960		)	5,157			(974		)	—
Direct revenues		$	397,128		$	125,300		$	215,999		$	144,408		$	(638	)	$	882,197

		For the Six Months Ended June 30, 2010
		Technical Services			Field Services (1)			Industrial Services			Oil and Gas Field Services			Corporate Items			Totals
Third party revenues		$	320,936		$	213,376		$	191,124		$	101,163		$	(64	)	$	826,535
Intersegment revenues, net		12,076			(13,263		)	(1,631		)	3,622			(804		)	—
Direct revenues		$	333,012		$	200,113		$	189,493		$	104,785		$	(868	)	$	826,535

(1) During the three and six months ended June 30, 2010, third party revenues for the Field Services segment included revenues associated with the oil spill response efforts in the Gulf of Mexico of $108.6 million.

Reconciliation to consolidated statements of income to adjusted EBITDA

		For the Three Months Ended June 30,						For the Six Months Ended June 30,
		2011			2010			2011			2010

Adjusted EBITDA:
Technical Services		$	59,614		$	44,385		$	104,951		$	77,565
Field Services		12,515			41,603			18,846			46,634
Industrial Services		25,862			24,122			49,205			43,982
Oil and Gas Field Services		8,427			5,966			23,092			17,462
Corporate Items		(25,191		)	(19,446		)	(47,276		)	(40,018		)
Total		$	81,227		$	96,630		$	148,818		$	145,625

Reconciliation to Consolidated Statements of Income:
Accretion of environmental liabilities		$	2,407		$	2,602		$	4,796		$	5,304
Depreciation and amortization		26,936			22,105			52,396			44,779
Income from operations		51,884			71,923			91,626			95,542
Other income		(2,868		)	(2,708		)	(5,767		)	(3,154		)
Interest expense, net of interest income		10,642			7,646			17,120			14,574
Income from continuing operations before provision for income taxes		$	44,110		$	66,985		$	80,273		$	84,122

PP&E and intangible assets by segment

		June 30, 2011			December 31, 2010
Property, plant and equipment, net
Technical Services		$	266,968		$	259,582
Field Services		34,821			32,311
Industrial Services		221,852			180,781
Oil and Gas Field Services		283,384			151,244
Corporate or other assets		41,251			31,476
Total property, plant and equipment, net		$	848,276		$	655,394
Intangible assets:
Technical Services
Goodwill		$	33,654		$	33,448
Permits and other intangibles, net		65,089			66,075
Total Technical Services		98,743			99,523
Field Services
Goodwill		3,088			3,088
Permits and other intangibles, net		3,491			3,651
Total Field Services		6,579			6,739
Industrial Services
Goodwill		28,583			10,934
Permits and other intangibles, net		18,147			17,906
Total Industrial Services		46,730			28,840
Oil and Gas Field Services
Goodwill		23,186			12,782
Permits and other intangibles, net		40,341			26,768
Total Oil and Gas Field Services		63,527			39,550
Total		$	215,579		$	174,652

Total assets by segment

		June 30, 2011			December 31, 2010
Technical Services		$	529,173		$	525,286
Field Services		44,494			35,253
Industrial Services		279,602			221,472
Oil and Gas Field Services		419,870			272,479
Corporate Items		691,941			547,985
Total		$	1,965,080		$	1,602,475

Total assets by geographical area

		June 30, 2011			December 31, 2010
United States		$	1,060,846		$	933,550
Canada		899,986			664,534
Other foreign		4,248			4,391
Total		$	1,965,080		$	1,602,475