Segment Reporting

3 Months Ended

Mar. 31, 2018

SEGMENT REPORTING

We operate our business in two reportable segments. These complementary segments provide different services and products and utilize different technologies for improving reservoir performance and increasing oil and gas recovery from new and existing fields.

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Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples to increase production and improve recovery of oil and gas from our clients' reservoirs. We provide laboratory based analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry. We also provide proprietary and joint industry studies based on these types of analysis.


•	Production Enhancement: Includes services and products relating to reservoir well completions, perforations, stimulations and production. We provide integrated diagnostic services to evaluate and monitor the effectiveness of well completions and to develop solutions aimed at increasing the effectiveness of enhanced oil recovery projects.

Results for these segments are presented below. We use the same accounting policies to prepare our segment results as are used to prepare our Consolidated Financial Statements. All interest and other non-operating income (expense) is attributable to Corporate & Other and is not allocated to specific segments. Summarized financial information concerning our segments is shown in the following table (in thousands):



	Reservoir Description		Production Enhancement		Corporate & Other ¹			Consolidated
Three Months Ended March 31, 2018
Revenue from unaffiliated clients	$	100,809	$	69,209	$	—		$	170,018
Inter-segment revenue	47		51		(98		)	—
Segment operating income (loss)	14,757		17,687		(128		)	32,316
Total assets (at end of period)	319,830		217,935		59,375			597,140
Capital expenditures	2,181		1,847		415			4,443
Depreciation and amortization	4,248		1,002		568			5,818
Three Months Ended March 31, 2017
Revenue from unaffiliated clients	$	104,895	$	51,714	$	—		$	156,609
Inter-segment revenue	174		201		(375		)	—
Segment operating income (loss)	15,940		7,755		(156		)	23,539
Total assets (at end of period)	320,543		196,298		63,575			580,416
Capital expenditures	2,577		3,020		852			6,449
Depreciation and amortization	4,620		1,164		520			6,304

(1) "Corporate & Other" represents those items that are not directly related to a particular segment, eliminations and the assets and liabilities of discontinued operations.