Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

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, 2021
Revenue from unaffiliated clients	$	78,252	$	40,493		$	—		$	118,745
Inter-segment revenue		70		41			(111	)		—
Segment operating income (loss)		7,265		3,831			1,704			12,800
Total assets (at end of period)		335,617		134,146			128,662			598,425
Capital expenditures		2,653		214			17			2,884
Depreciation and amortization		3,060		1,444			247			4,751
Three months ended June 30, 2020
Revenue from unaffiliated clients	$	88,442	$	27,294		$	—		$	115,736
Inter-segment revenue		62		88			(150	)		—
Segment operating income (loss)		13,534		(16,324	)		223			(2,567	)
Total assets (at end of period)		321,003		133,133			160,305			614,441
Capital expenditures		1,820		1,198			47			3,065
Depreciation and amortization		3,452		1,706			267			5,425
Six months ended June 30, 2021
Revenue from unaffiliated clients	$	154,738	$	72,390		$	—		$	227,128
Inter-segment revenue		127		77			(204	)		—
Segment operating income (loss)		17,317		5,391			1,714			24,422
Total assets (at end of period)		335,617		134,146			128,662			598,425
Capital expenditures		5,053		518			86			5,657
Depreciation and amortization		6,187		2,891			544			9,622
Six months ended June 30, 2020
Revenue from unaffiliated clients	$	191,144	$	76,992		$	—		$	268,136
Inter-segment revenue		162		404			(566	)		—
Segment operating income (loss)		24,596		(137,623	)		1,487			(111,540	)
Total assets (at end of period)		321,003		133,133			160,305			614,441
Capital expenditures		3,232		3,112			62			6,406
Depreciation and amortization		6,974		3,347			545			10,866

(1) "Corporate & Other" represents those items that are not directly related to a particular segment and eliminations.