Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2014

Property Plant And Equipment [Abstract]

Property and Equipment

Property and equipment consisted of the following at September 30, 2014 and December 31, 2013 (in thousands):

	September 30,			December 31,
	2014			2013
Equipment	$	6,361,452		$	5,749,975
Oil and natural gas properties		207,340			183,571
Buildings		83,230			80,050
Land		12,046			12,054
		6,664,068			6,025,650
Less accumulated depreciation and depletion		(2,756,737	)		(2,390,109	)
Property and equipment, net	$	3,907,331		$	3,635,541