Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill — Goodwill by operating segment as of December 31, 2013 and 2012 and changes for the years 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 December 31, 2012		86,234		67,575		153,809
Changes to goodwill		—		—		—

Balance December 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 December 31, 2013 and 2012 (in thousands):


	2013							2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Non-compete agreement	$	1,400	$	(1,400	)	$	—	$	1,400	$	(1,050	)	$	350
Customer relationships		25,500		(11,839	)		13,661		25,500		(8,196	)		17,304

Total intangible assets	$	26,900	$	(13,239	)	$	13,661	$	26,900	$	(9,246	)	$	17,654