Segment Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Schedule of Long-Lived Assets, by Reporting Segment

Drilling Division	Rig Count
South Texas	14
West Texas	18
North Dakota	11
Utah	7
Appalachia	4
Colombia	8
	62

Drilling Division	Rig Count
South Texas	14
West Texas	18
North Dakota	11
Utah	7
Appalachia	4
Colombia	8
	62

Schedule of Segment Reporting Information, by Segment

The following tables set forth certain financial information for our two operating segments and corporate as of and for the three months ended March 31, 2014 and 2013 (amounts in thousands):

	As of and for the three months ended March 31, 2014
	Drilling Services Segment		Production Services Segment		Corporate		Total
Identifiable assets	$	780,786	$	403,923	$	241,668	$	1,426,377
Revenues	$	117,957	$	121,077	$	—	$	239,034
Operating costs	76,338		77,752		—		154,090
Segment margin	$	41,619	$	43,325	$	—	$	84,944
Depreciation and amortization	$	29,239	$	16,019	$	268	$	45,526
Capital expenditures	$	21,256	$	15,343	$	318	$	36,917

	As of and for the three months ended March 31, 2013
	Drilling Services Segment		Production Services Segment		Corporate		Total
Identifiable assets	$	870,291	$	430,829	$	23,137	$	1,324,257
Revenues	$	133,074	$	96,596	$	—	$	229,670
Operating costs	88,986		60,619		—		149,605
Segment margin	$	44,088	$	35,977	$	—	$	80,065
Depreciation and amortization	$	30,046	$	15,987	$	252	$	46,285
Capital expenditures	$	27,796	$	13,873	$	381	$	42,050

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

The following table reconciles the segment profits reported above to income from operations as reported on the consolidated statements of operations for the three months ended March 31, 2014 and 2013 (amounts in thousands):

	Three months ended March 31,
	2014			2013
Segment margin	$	84,944		$	80,065
Depreciation and amortization	(45,526		)	(46,285		)
General and administrative	(24,483		)	(23,054		)
Bad debt recovery (expense)	124			(281		)
Income from operations	$	15,059		$	10,445

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The following table sets forth certain financial information for our international operations in Colombia as of and for the three months ended March 31, 2014 and 2013 (amounts in thousands):

	As of and for the three months ended March 31,
	2014		2013
Identifiable assets	$	153,158	$	151,498
Revenues	$	22,164	$	30,775