Property and Equipment

9 Months Ended

Sep. 30, 2014

Property, Plant and Equipment [Abstract]

The following table summarizes our property and equipment as of the dates presented:



	As of
	September 30,			December 31,
	2014			2013
Oil and gas properties:
Proved	$	450,601		$	460,255
Unproved	137,464			101,520
Total oil and gas properties	588,065			561,775
Other property and equipment:
Wells, equipment and facilities	2,743,466			2,593,700
Support equipment	23,153			21,513
Total other property and equipment	2,766,619			2,615,213
	3,354,684			3,176,988
Accumulated depreciation, depletion and amortization	(1,011,781		)	(939,684		)
	$	2,342,903		$	2,237,304

In the three months ended September 30, 2014, we recognized an oil and gas asset impairment of $6.1 million in connection with an exploration prospect drilled in the Mid-Continent region. In June 2014, we entered into a definitive agreement to sell our Selma Chalk assets in Mississippi. An impairment charge of $117.9 million was recognized in the three months ended June 30, 2014 to write these assets down to fair value. The sale was completed in July 2014.

- 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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