Segment Reporting Level 1 (Notes)

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

SEGMENT REPORTING

We operate our business in three reportable segments:  (1) Reservoir Description, (2) Production Enhancement and (3) Reservoir Management.  These operating segments provide different services and utilize different technologies.

• Reservoir Description: Encompasses the characterization of petroleum reservoir rock, fluid and gas samples. We provide analytical and field services to characterize properties of crude oil and petroleum products to the oil and gas industry.

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

• Reservoir Management: Combines and integrates information from reservoir description and production enhancement services to increase production and improve recovery of oil and gas from our clients' reservoirs.

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

(Unaudited)	Reservoir Description		Production Enhancement		Reservoir Management		Corporate & Other 1			Consolidated
Three Months Ended June 30, 2013
Revenues from unaffiliated customers	$	129,222	$	110,199	$	23,718	$	—		$	263,139
Inter-segment revenues	1,090		740		400		(2,230		)	—
Segment operating income (loss)	36,918		37,239		7,475		237			81,869
Total assets (at end of period)	299,399		255,987		35,570		64,160			655,116
Capital expenditures	6,424		1,851		517		700			9,492
Depreciation and amortization	3,599		1,797		189		379			5,964
Three Months Ended June 30, 2012
Revenues from unaffiliated customers	$	126,462	$	99,547	$	20,997	$	—		$	247,006
Inter-segment revenues	760		615		785		(2,160		)	—
Segment operating income (loss)	38,076		29,564		7,113		(2,627		)	72,126
Total assets (at end of period)	279,823		246,837		24,756		71,257			622,673
Capital expenditures	3,667		2,426		29		1,475			7,597
Depreciation and amortization	3,445		902		175		555			5,077
Six Months Ended June 30, 2013
Revenues from unaffiliated customers	$	254,467	$	217,630	$	51,969	$	—		$	524,066
Inter-segment revenues	1,475		1,677		823		(3,975		)	—
Segment operating income (loss)	71,769		71,477		17,321		339			160,906
Total assets	299,399		255,987		35,570		64,160			655,116
Capital expenditures	11,853		3,939		1,036		1,107			17,935
Depreciation and amortization	7,224		3,614		380		771			11,989
Six Months Ended June 30, 2012
Revenues from unaffiliated customers	$	242,568	$	196,280	$	42,349	$	—		$	481,197
Inter-segment revenues	1,296		1,083		804		(3,183		)	—
Segment operating income (loss)	70,491		63,095		15,028		(2,582		)	146,032
Total assets	279,823		246,837		24,756		71,257			622,673
Capital expenditures	6,146		4,268		440		4,040			14,894
Depreciation and amortization	6,992		2,500		342		1,126			10,960

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