Properties and Equipment (Tables)

3 Months Ended

Mar. 31, 2022

The following table presents the components of properties and equipment, net of accumulated depreciation, depletion and amortization (“DD&A”) as of the dates indicated:


	March 31, 2022		December 31, 2021
	(in thousands)
Properties and equipment, net:
Crude oil and natural gas properties
Proved	$	8,511,308	$	8,310,018
Unproved	306,210		306,181
Total crude oil and natural gas properties	8,817,518		8,616,199
Equipment and other	66,917		63,099
Land and buildings	19,928		19,928
Construction in progress	387,212		371,968
Properties and equipment, at cost	9,291,575		9,071,194
Accumulated DD&A	(4,405,311)		(4,256,329)
Properties and equipment, net	$	4,886,264	$	4,814,865

Schedule of Aging of Capitalized Exploratory Well Costs [Table Text Block]

The following table presents the capitalized exploratory well cost pending determination of proved reserves and included in properties and equipment for the periods presented:


	Three Months Ended March 31, 2022		Year Ended December 31, 2021
	(in thousands, except for number of wells)
Beginning balance	$	—	$	7,459
Additions to capitalized exploratory well costs pending the determination of proved reserves	3,428		5,902
Reclassifications to proved properties	—		(13,361)
Ending balance	$	3,428	$	—

Number of wells pending determination at period-end	1		—