Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

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


	December 31,
	2019		2018

	(In thousands)
Proved oil and gas properties⁽¹⁾	$	8,724,376	$	7,878,104
Less: Accumulated depreciation, depletion, amortization and impairment	(3,601,019)		(2,853,353)
Proved oil and gas properties, net	5,123,357		5,024,751
Unproved oil and gas properties	738,662		1,034,085
Other property and equipment⁽²⁾	1,279,653		1,151,772
Less: Accumulated depreciation	(163,896)		(183,499)
Other property and equipment, net	1,115,757		968,273
Total property, plant and equipment, net	$	6,977,776	$	7,027,109

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(1)Included in the Company’s proved oil and gas properties are estimates of future asset retirement costs of $42.3 million and $40.5 million at December 31, 2019 and 2018, respectively.

(2)Included in the Company’s other property and equipment are estimates of future asset retirement costs of $1.4 million and $1.3 million at December 31, 2019 and 2018, respectively.