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Oil and Gas Producing Activities (Tables)

12 Months Ended

Dec. 31, 2020

Oil and Gas Exploration and Production Industries Disclosures [Abstract]

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

			As of December 31,
			2019						2020
			(In thousands)
Proved properties:
Leasehold costs			$	2,912,196					$	3,010,760
Wells and related equipment and facilities			1,165,317						1,636,428
Accumulated depreciation depletion and amortization			(485,851)						(901,003)
			3,591,662						3,746,185
Unproved properties			410,897						332,765
			$	4,002,559					$	4,078,950

Costs Incurred

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

			Predecessor									Successor
			For the Period from January 1, 2018  through August 13, 2018									For the Period from August 14, 2018 through December 31, 2018						Year Ended December 31, 2019						Year Ended December 31, 2020
			(In thousands)
Property acquisitions			$	39,323								$	21,013					$	2,097,451					$	—
Exploration and development:
Exploratory leasehold costs			—									—						—						7,949
Development leasehold costs			2,848									1,715						7,603						13,022
Development drilling and completion costs			90,840									148,745						493,625						436,074
Other development costs			13,871									13,612						9,339						34,525
Total capital expenditures			$	146,882								$	185,085					$	2,608,018					$	491,570

X

- Definition

Tabular disclosure of aggregate capitalized costs relating to an enterprise's oil and gas producing activities and the aggregate related accumulated depreciation, depletion, amortization, and valuation allowances.

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