Segment Information (Tables)

12 Months Ended

Dec. 31, 2013

Financial information regarding reportable segments

ummarized financial information of the reportable segments is as follows (in thousands):



As of and for the year ended December 31,	Energy Chemical Technologies		Consumer and Industrial Chemical Technologies		Drilling Technologies		Artificial Lift Technologies		Corporate and Other			Total

2013
Net revenue from external customers	$	200,932	$	42,927	$	112,406	$	14,800	$	—		$	371,065
Gross margin	88,536		10,659		43,156		5,176		—			147,527
Income (loss) from operations	65,396		6,260		18,306		3,060		(34,296		)	58,726
Depreciation and amortization	3,160		1,126		9,632		250		941			15,109
Total assets	127,119		86,640		135,738		16,647		9,437			375,581
Capital expenditures	5,225		183		6,326		1,749		1,524			15,007

2012
Net revenue from external customers	$	183,986	$	—	$	116,736	$	12,106	$	—		$	312,828
Gross margin	81,438		—		45,709		4,472		—			131,619
Income (loss) from operations	65,440		—		22,282		3,395		(32,496		)	58,621
Depreciation and amortization	1,765		—		9,115		206		497			11,583
Total assets	59,195		—		118,771		11,189		30,712			219,867
Capital expenditures	3,553		—		12,264		77		4,807			20,701

2011
Net revenue from external customers	$	140,836	$	—	$	102,470	$	15,479	$	—		$	258,785
Gross margin	56,115		—		43,607		6,098		—			105,820
Income (loss) from operations	43,549		—		23,035		4,296		(21,992		)	48,888
Depreciation and amortization	1,594		—		8,061		196		254			10,105
Total assets	54,958		—		113,130		10,815		53,109			232,012
Capital expenditures	2,231		—		6,025		182		1,546			9,984

Revenue by major customers

Revenue from major customers, as a percentage of consolidated revenue, is as follows:



	Year ended December 31,
	2013	2012	2011
Customer A	16.2%	15.6%	13.1%
Customer B	*	10.0%	*
Customer C	*	*	10.8%

Revenue by country is based on the location where services are provided and products are sold. No individual country other than the United States ("U.S.") accounted for more than 10% of revenue. Revenue by geographic location is as follows (in thousands):



	Year ended December 31,
	2013		2012		2011
U.S.	$	319,649	$	272,945	$	222,304
Other countries	51,416		39,883		36,481
Total	$	371,065	$	312,828	$	258,785

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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