Quarterly report pursuant to Section 13 or 15(d)

BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Supplemental Cash Flow Information (Details)

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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Supplemental Cash Items:    
Cash Paid During the Period for Interest, Net of Amount Capitalized $ 12,525 $ 15,990
Cash Paid During the Period for Income Taxes 0 0
Non-cash Investing Activities:    
Oil and Natural Gas Properties Included in Accounts Payable and Accrued Liabilities 91,072 143,220
Capitalized Asset Retirement Obligations 205 259
Compensation Capitalized on Oil and Gas Properties 147 184
Preferred Stock    
Non-cash Financing Activities:    
Issuance of Stock $ 0 $ 81,212