Business Segment, Geographic and Major Customer Information (Tables)

12 Months Ended

Dec. 31, 2014

Financial information regarding reportable segments

Summarized 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		Production Technologies		Corporate and Other			Total

2014
Net revenue from external customers	$	268,761	$	51,091	$	113,302	$	16,003	$	—		$	449,157
Gross margin	117,867		12,897		45,651		6,544		—			182,959
Income (loss) from operations	84,846		6,558		19,022		3,246		(32,784		)	80,888
Depreciation and amortization	4,401		2,138		9,808		327		1,174			17,848
Total assets	156,596		87,412		147,584		21,843		9,841			423,276
Capital expenditures	6,983		115		9,626		942		2,241			19,907

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

Revenue by major customers

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



	Year ended December 31,
	2014	2013	2012
Customer A	16.1%	16.2%	15.6%
Customer B	*	*	10.0%

*This customer did not account for more than 10% of revenue.

Revenue by country is based on the location where services are provided and products are used. 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,
	2014		2013		2012
U.S.	$	370,087	$	319,649	$	272,945
Other countries	79,070		51,416		39,883
Total	$	449,157	$	371,065	$	312,828

- 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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