Quarterly report pursuant to Section 13 or 15(d)

CRUDE OIL AND NATURAL GAS PROPERTIES - Narrative (Details)

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CRUDE OIL AND NATURAL GAS PROPERTIES - Narrative (Details)
 3 Months Ended 6 Months Ended
Apr. 01, 2021
USD ($)
well
$ / shares
shares
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Asset Acquisition [Line Items]          
Impairment expense   $ 0 $ 762,716,000 $ 0 $ 762,716,000
Anticipated future period over which excluded costs will become subject to depletion       5 years  
Leases expired   500,000 400,000 $ 600,000 2,000,000.0
Independent Transactions          
Asset Acquisition [Line Items]          
Consideration transferred   24,700,000 400,000 29,100,000 25,900,000
Development costs incurred prior to closing   7,000,000.0 $ 100,000 $ 8,800,000 $ 18,400,000
Reliance          
Asset Acquisition [Line Items]          
Consideration transferred $ 139,727,000        
Number of net PPD wells acquired | well 95.3        
Number of PPD wells acquired | well 24.9        
Net mineral acres acquired (in acres) | well 61,712        
Common stock, equity interest issued (in shares) | shares 3,250,000        
Common stock, equity interest issued and issuable, exercise price (in dollars per share) | $ / shares $ 14.00        
Issuance of common stock warrants $ 30,512,000        
Payments to acquire producing properties 109,215,000        
Revenue of acquiree since acquisition date   11,000,000.0      
Income from operations since acquisition date   $ 1,900,000      
Transaction costs $ 5,500,000