Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Goodwill — Goodwill by operating segment as of March 31, 2013 and changes for the three months then ended are as follows (in thousands):


	Contract Drilling		Pressure Pumping		Total
Balance December 31, 2012	$	86,234	$	67,575	$	153,809
Changes to goodwill		—		—		—

Balance March 31, 2013	$	86,234	$	67,575	$	153,809

Gross Carrying Amount and Accumulated Amortization of Intangible Assets

The following table presents the gross carrying amount and accumulated amortization of intangible assets as of March 31, 2013 and December 31, 2012 (in thousands):


	March 31, 2013							December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Non-compete agreement	$	1,400	$	(1,167	)	$	233	$	1,400	$	(1,050	)	$	350
Customer relationships		25,500		(9,107	)		16,393		25,500		(8,196	)		17,304

Total intangible assets	$	26,900	$	(10,274	)	$	16,626	$	26,900	$	(9,246	)	$	17,654

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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