Net Property and Equipment

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment, Net [Abstract]

Net property and equipment includes the following at December 31, 2013 and 2012:



		December 31,
In thousands		2013			2012
Proved crude oil and natural gas properties	$	12,423,878		$	8,980,505
Unproved crude oil and natural gas properties		1,181,268			1,073,944
Service properties, equipment and other		236,233			170,763
Total property and equipment		13,841,379			10,225,212
Accumulated depreciation, depletion and amortization		(3,120,107	)		(2,119,943	)
Net property and equipment	$	10,721,272		$	8,105,269

- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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