Property, Plant and Equipment

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

The following table sets forth the Company’s property, plant and equipment:

	December 31,
	2015			2014
	(In thousands)
Proved oil and gas properties(1)	$	5,655,759		$	5,156,875
Less: Accumulated depreciation, depletion, amortization and impairment	(1,428,427		)	(1,043,121		)
Proved oil and gas properties, net	4,227,332			4,113,754
Unproved oil and gas properties	628,642			809,265
Other property and equipment	443,265			313,439
Less: Accumulated depreciation	(80,997		)	(49,672		)
Other property and equipment, net	362,268			263,767
Total property, plant and equipment, net	$	5,218,242		$	5,186,786

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(1) Included in the Company’s proved oil and gas properties are estimates of future asset retirement costs of $30.7 million and $36.9 million at December 31, 2015 and 2014, respectively.