Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

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, 2019
Revenue from unaffiliated clients	$	103,292	$	65,902	$	—		$	169,194
Inter-segment revenue		96		44		(140	)		—
Segment operating income		6,179		9,912		323			16,414
Total assets (at end of period)		342,617		290,734		158,409			791,760
Capital expenditures		1,902		2,851		430			5,183
Depreciation and amortization		3,987		1,183		417			5,587
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
(1) "Corporate & Other" represents those items that are not directly related to a particular segment, eliminations and the assets and liabilities of discontinued operations.