Segment Information

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Segment Information

Segment Information

We have two operating segments referred to as the Drilling Services Division and the Production Services Division which is the basis management uses for making operating decisions and assessing performance.

Drilling Services Division—Our Drilling Services Division provides contract land drilling services with its fleet of 64 drilling rigs that are assigned to the following locations:

Drilling Division Locations	Rig Count
South Texas	15
East Texas	5
West Texas	18
North Dakota	9
Utah	4
Appalachia	5
Colombia	8

Production Services Division—Our Production Services Division provides a range of services to oil and gas exploration and production companies, including well services, wireline, coiled tubing, and fishing and rental services. Our production services operations are managed through locations concentrated in the major United States onshore oil and gas producing regions in the Gulf Coast, Mid-Continent, Rocky Mountain and Appalachian states. We currently have a premium fleet of 91 well service rigs consisting of eighty-one 550 horsepower rigs, nine 600 horsepower rigs and one 400 horsepower rig. We currently provide wireline and coiled tubing services with a fleet of 109 and ten wireline and coiled tubing units, respectively, and we provide rental services with approximately $15.1 million of fishing and rental tools.

The following tables set forth certain financial information for our two operating segments and corporate as of and for the years ended December 31, 2011, 2010 and 2009 (amounts in thousands):

	As of and for the year ended December 31, 2011
	Drilling Services Division		Production Services Division		Corporate		Total
Identifiable assets	$	667,588	$	398,128	$	107,038	$	1,172,754
Revenues	$	433,902	$	282,039	$	—	$	715,941
Operating costs	292,559		164,365		—		456,924
Segment margin	$	141,343	$	117,674	$	—	$	259,017
Depreciation and amortization	$	99,302	$	32,683	$	847	$	132,832
Capital expenditures	$	168,120	$	68,908	$	759	$	237,787

	As of and for the year ended December 31, 2010
	Drilling Services Division		Production Services Division		Corporate		Total
Identifiable assets	$	542,242	$	261,777	$	37,324	$	841,343
Revenues	$	312,196	$	175,014	$	—	$	487,210
Operating costs	227,136		105,295		—		332,431
Segment margin	$	85,060	$	69,719	$	—	$	154,779
Depreciation and amortization	$	92,800	$	26,740	$	1,271	$	120,811
Capital expenditures	$	109,261	$	25,411	$	479	$	135,151

	As of and for the year ended December 31, 2009
	Drilling Services Division		Production Services Division		Corporate		Total
Identifiable assets	$	536,858	$	234,920	$	53,177	$	824,955
Revenues	$	219,751	$	105,786	$	—	$	325,537
Operating costs	147,343		68,012		—		215,355
Segment margin	$	72,408	$	37,774	$	—	$	110,182
Depreciation and amortization	$	81,078	$	23,893	$	1,215	$	106,186
Capital expenditures	$	94,887	$	15,162	$	404	$	110,453

The following table reconciles the segment profits reported above to income from operations as reported on the consolidated statements of operations for the years ended December 31, 2011, 2010 and 2009 (amounts in thousands):

	Year ended December 31,
	2011			2010			2009
Segment margin	$	259,017		$	154,779		$	110,182
Depreciation and amortization	(132,832		)	(120,811		)	(106,186		)
General and administrative	(67,318		)	(52,047		)	(37,478		)
Bad debt (expense) recovery	(925		)	(493		)	1,642
Impairment of equipment	(484		)	—			—
Income (loss) from operations	$	57,458		$	(18,572	)	$	(31,840	)

The following table sets forth certain financial information for our international operations in Colombia as of and for the years ended December 31, 2011, 2010 and 2009 which is included in our Drilling Services Division (amounts in thousands):

	As of and for the years ended December 31,
	2011		2010		2009
Identifiable assets	$	151,448	$	157,509	$	120,319
Revenues	$	109,539	$	86,432	$	56,617

Identifiable assets as of December 31, 2011 and 2010 include five drilling rigs that are owned by our Colombia subsidiary and three drilling rigs that are owned by one of our domestic subsidiaries and leased to our Colombia subsidiary. As of December 31, 2009, identifiable assets include five drilling rigs that are owned by our Colombia subsidiary and one drilling rig that is owned by one of our domestic subsidiaries and leased to our Colombia subsidiary.