Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

Summarized financial information concerning our segments is shown in the following table (in thousands):

	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other 1			Consolidated
Three Months Ended June 30, 2016
Revenue from unaffiliated clients	$	102,962	$	39,149	$	5,958	$	—		$	148,069
Inter-segment revenue	386		164		24		(574		)	—
Segment operating income (loss)	19,209		755		422		(159		)	20,227
Total assets (at end of period)	309,308		192,729		17,925		52,144			572,106
Capital expenditures	2,266		160		8		10			2,444
Depreciation and amortization	4,454		1,343		335		619			6,751
Three Months Ended June 30, 2015
Revenue from unaffiliated clients	$	118,911	$	70,589	$	14,389	$	—		$	203,889
Inter-segment revenue	2,411		652		58		(3,121		)	—
Segment operating income (loss)	30,944		14,376		3,452		(879		)	47,893
Total assets (at end of period)	330,417		229,899		26,048		72,621			658,985
Capital expenditures	4,297		709		45		390			5,441
Depreciation and amortization	4,232		1,649		422		627			6,930
Six Months Ended June 30, 2016
Revenue from unaffiliated clients	$	204,511	$	83,294	$	13,911	$	—		$	301,716
Inter-segment revenue	2,293		384		29		(2,706		)	—
Segment operating income (loss)	37,429		4,896		909		(67		)	43,167
Total assets (at end of period)	309,308		192,729		17,925		52,144			572,106
Capital expenditures	4,340		538		16		408			5,302
Depreciation and amortization	8,890		2,768		698		1,242			13,598
Six Months Ended June 30, 2015
Revenue from unaffiliated clients	$	240,670	$	145,734	$	31,128	$	—		$	417,532
Inter-segment revenue	5,187		1,369		207		(6,763		)	—
Segment operating income (loss)	59,474		24,299		7,318		(481		)	90,610
Total assets (at end of period)	330,417		229,899		26,048		72,621			658,985
Capital expenditures	8,734		2,512		266		798			12,310
Depreciation and amortization	8,015		3,410		853		1,218			13,496