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Properties and Equipment (Tables)
 9 Months Ended
Sep. 30, 2022
Oil and Gas Property [Abstract]  
Property, Plant and Equipment
The following table presents the components of properties and equipment, net of accumulated depreciation, depletion and amortization (“DD&A”) as of the dates indicated:
September 30, 2022December 31, 2021
(in thousands)
Properties and equipment, net:
Crude oil and natural gas properties
Proved$10,961,408 $8,310,018 
Unproved257,919 306,181 
Total crude oil and natural gas properties11,219,327 8,616,199 
Equipment and other69,570 63,099 
Land and buildings25,406 19,928 
Construction in progress614,313 371,968 
Properties and equipment, at cost11,928,616 9,071,194 
Accumulated DD&A(4,801,325)(4,256,329)
Properties and equipment, net$7,127,291 $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:
Year Ended December 31, 2021
(in thousands, except for number of wells)
Beginning balance$7,459 
Additions to capitalized exploratory well costs pending the determination of proved reserves5,902 
Reclassifications to proved properties(13,361)
Ending balance$— 
Number of wells pending determination at period-end—