Segment Reporting (Tables)

6 Months Ended

Jun. 30, 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 June 30, 2019
Revenue from unaffiliated clients	$	105,649	$	63,389	$	—		$	169,038
Inter-segment revenue		151		176		(327	)		—
Segment operating income		15,878		10,424		1,706			28,008
Total assets (at end of period)		342,843		290,967		147,708			781,518
Capital expenditures		2,744		4,281		22			7,047
Depreciation and amortization		3,834		1,544		408			5,786
Three months ended June 30, 2018
Revenue from unaffiliated clients	$	102,107	$	73,368	$	—		$	175,475
Inter-segment revenue		73		101		(174	)		—
Segment operating income (loss)		14,760		18,427		262			33,449
Total assets (at end of period)		319,122		218,011		67,611			604,744
Capital expenditures		5,384		1,938		150			7,472
Depreciation and amortization		4,290		1,006		572			5,868
Six months ended June 30, 2019
Revenue from unaffiliated clients	$	208,941	$	129,291	$	—		$	338,232
Inter-segment revenue		247		220		(467	)		—
Segment operating income		22,057		20,336		2,029			44,422
Total assets		342,843		290,967		147,708			781,518
Capital expenditures		4,646		7,132		452			12,230
Depreciation and amortization		7,821		2,727		825			11,373
Six months ended June 30, 2018
Revenue from unaffiliated clients	$	202,916	$	142,577	$	—		$	345,493
Inter-segment revenue		120		152		(272	)		—
Segment operating income (loss)		29,517		36,114		134			65,765
Total assets		319,122		218,011		67,611			604,744
Capital expenditures		7,565		3,785		565			11,915
Depreciation and amortization		8,537		2,008		1,141			11,686
(1) "Corporate & Other" represents those items that are not directly related to a particular segment, eliminations and the assets and liabilities of discontinued operations.