Quarterly report pursuant to Section 13 or 15(d)

BASIS OF PRESENTATION (Supplemental Cash and Non Cash Information) (Details)

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BASIS OF PRESENTATION (Supplemental Cash and Non Cash Information) (Details) - USD ($)
$ in Thousands
 1 Months Ended 5 Months Ended 6 Months Ended
Jun. 30, 2021
May 17, 2021
Jun. 30, 2020
Supplemental disclosure of cash flow information:      
Cash paid for reorganization items, net $ 15,369 $ 87,199 $ 0
Interest payments 2,072 7,272 60,523
Changes in operating assets and liabilities:      
(Increase) decrease in accounts receivable - oil and natural gas sales 40,048 (60,832) 55,565
(Increase) decrease in accounts receivable - joint interest and other 4,510 (3,005) 29,159
Increase (decrease) in accounts payable and accrued liabilities (80,097) 79,193 (30,620)
(Increase) decrease in prepaid expenses 681 135,471 (5,744)
(Increase) decrease in other assets 62 3,067 41
Total changes in operating assets and liabilities (34,796) 153,894 48,401
Supplemental disclosure of non-cash transactions:      
Capitalized stock-based compensation 0 930 1,891
Asset retirement obligation capitalized 36 546 1,553
Asset retirement obligation removed due to divestiture 0 0 (2,033)
Interest capitalized 0 0 710
Fair value of contingent consideration asset on date of divestiture 0 0 23,090
Release of New Common Stock Held in Reserve 23,893 0 0
Foreign currency translation gain (loss) on equity method investments $ 0 $ 2,570 $ (8,158)