Oil and Gas Producing Activities (Tables)

12 Months Ended

Dec. 31, 2021

Oil and Gas Exploration and Production Industries Disclosures [Abstract]

Capitalized Costs Related to Oil and Natural Gas Property Acquisition Exploration and Development Activities

Set forth below is certain information regarding the aggregate capitalized costs of oil and gas properties and costs incurred by the Company for its oil and natural gas property acquisition, development and exploration activities:

Capitalized Costs

	As of December 31,
	2021		2020
	(In thousands)
Proved properties:
Leasehold costs	$	3,053,783	$	3,010,760
Wells and related equipment and facilities	1,702,611		1,636,428
Accumulated depreciation depletion and amortization	(1,056,317)		(901,003)
	3,700,077		3,746,185
Unproved properties	302,129		332,765
	$	4,002,206	$	4,078,950

Costs Incurred Related to Oil and Natural Gas Property Acquisition Exploration and Development Activities

	Year Ended December 31,
	2021		2020		2019
	(In thousands)
Property acquisitions:
Proved property	$	21,781	$	—	$	1,854,541
Unproved property	35,871		7,949		237,210
Exploration and development:
Development leasehold costs	12,953		13,022		7,603
Exploratory drilling and completion costs	6,966		—		—
Development drilling and completion costs	569,141		436,074		493,625
Other development costs	39,168		34,572		2,490
Change to asset retirement obligations	5,608		(47)		12,549
Total capital expenditures	$	691,488	$	491,570	$	2,608,018