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Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill — Goodwill by operating segment as of March 31, 2012 and changes for the three months then ended are as follows (in thousands):


	Contract Drilling		Pressure Pumping		Total
Balance December 31, 2011	$	86,234	$	67,575	$	153,809
Changes to goodwill		—		—		—

Balance March 31, 2012	$	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, 2012 (in thousands):


	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Non-compete agreement	$	1,400	$	(700	)	$	700
Customer relationships		25,500		(5,463	)		20,037

Total intangible assets	$	26,900	$	(6,163	)	$	20,737

- Definition

Tabular disclosure of amortizable intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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- Definition

Tabular disclosure of goodwill by reportable segment and in total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.

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