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Supplemental Oil and Gas Disclosures - Unaudited
12 Months Ended
Dec. 31, 2020
Oil and Gas Exploration and Production Industries Disclosures [Abstract]  
Supplemental Oil and Gas Disclosures - Unaudited Supplemental Oil and Gas Disclosures — Unaudited The supplemental data presented below reflects information for all of the Company’s oil and gas producing activities.
Capitalized Costs
The following table sets forth the capitalized costs related to the Company’s oil and gas producing activities at December 31 (in thousands):
SuccessorPredecessor
 December 31, 2020December 31, 2019
Proved oil and gas properties$770,117 $8,724,376 
Less: Accumulated depreciation, depletion, amortization and impairment(12,403)(3,601,019)
Proved oil and gas properties, net757,714 5,123,357 
Unproved oil and gas properties40,211 738,662 
Total oil and gas properties, net$797,925 $5,862,019 
Costs Incurred in Oil and Gas Property Acquisition, Exploration and Development Activities
The following table sets forth costs incurred related to the Company’s oil and gas activities for the periods presented (in thousands):
SuccessorPredecessor
 Period from November 20, 2020 through
December 31, 2020
Period from January 1, 2020 through
November 19, 2020
Year Ended December 31,
 20192018
Acquisition costs:
Proved oil and gas properties$— $— $— $260,034 
Unproved oil and gas properties336 536 23,058 696,293 
Exploration costs105 1,225 67,470 53,928 
Development costs14,624 199,537 542,133 923,562 
Asset retirement costs35 181 2,083 5,804 
Total costs incurred$15,100 $201,479 $634,744 $1,939,621 
Results of Operations for Oil and Gas Producing Activities
The following table sets forth the results of operations for oil and gas producing activities, which exclude general and administrative expenses and interest expense, for the periods presented (in thousands):
SuccessorPredecessor
 Period from November 20, 2020 through
December 31, 2020
Period from January 1, 2020 through
November 19, 2020
Year Ended December 31,
 20192018
Revenues$86,442 $603,585 $1,408,771 $1,590,024 
Production costs32,903 249,707 464,782 434,801 
Depreciation, depletion and amortization12,745 264,822 759,900 613,928 
Exploration costs— 2,748 6,658 27,432 
Rig termination — 1,279 384 — 
Impairment — 4,800,785 5,389 384,228 
Income tax (benefit) expense9,648 (1,115,276)40,745 30,770 
Results of operations for oil and gas producing activities$31,146 $(3,600,480)$130,913 $98,865