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Supplemental Oil and Gas Reserve Information - Unaudited - Narrative (Details)
Boe in Thousands, $ in Millions
12 Months Ended
Jul. 01, 2022
USD ($)
Dec. 31, 2022
USD ($)
Boe
$ / bbl
$ / MMBTU
Dec. 31, 2021
Boe
$ / bbl
$ / MMBTU
Dec. 31, 2020
Boe
$ / bbl
$ / MMBTU
Reserve Quantities [Line Items]        
Proved developed reserve, increase (decrease)       (103,900)
Purchases of reserves in place   349,768 57,015  
Extensions, discoveries and other additions   51,544 10,157 6,021
Revisions of previous estimates   47,110 53,871 (86,251)
Proved developed and undeveloped reserve, production (energy)   43,722 21,182 23,686
Proved developed and undeveloped reserves, sale of mineral in place (energy)   0 (31,461)  
Additional proved undeveloped reserves     7,600 2,800
Estimated extensions and discoveries of reserves associated with new wells     2,600 3,200
Discount rate   10.00%    
Unweighted arithmetic average first-day-of-the-month prices for oil (in dollars per Bbl) | $ / bbl   93.67 66.55 39.54
Unweighted arithmetic average first-day-of-the-month prices for natural gas (in dollars per MMBtu) | $ / MMBTU   6.36 3.64 2.03
Proved Undeveloped Reserves        
Reserve Quantities [Line Items]        
Purchases of reserves in place   68,097    
Extensions, discoveries and other additions   50,250    
Revisions of previous estimates   1,060    
Proved undeveloped reserve, increase   76,400    
Capital expenditures incurred but not yet paid | $   $ 270.8    
Amount converted to proved developed reserves   43,100    
PUD conversions, percent of reserve   56.00%    
Whiting Merger | Proved Undeveloped Reserves        
Reserve Quantities [Line Items]        
Capital expenditures incurred but not yet paid | $ $ 147.9      
Amount converted to proved developed reserves   28,000    
Revision From Change To Reporting Reserves On A Three-Stream Basis        
Reserve Quantities [Line Items]        
Revisions of previous estimates   30,300    
Revision From Change To Reporting Reserves On A Three-Stream Basis | Proved Undeveloped Reserves        
Reserve Quantities [Line Items]        
Positive (negative) revisions of previous estimates - proved developed reserves   6,700    
Revision of Previous Estimate Due to Realized Prices        
Reserve Quantities [Line Items]        
Revisions of previous estimates   26,100 37,200  
Positive (negative) revisions of previous estimates - proved developed reserves       31,900
Revision of Previous Estimate Due to Realized Prices | Proved Undeveloped Reserves        
Reserve Quantities [Line Items]        
Positive (negative) revisions of previous estimates - proved developed reserves   1,900    
Revision Due to Performance        
Reserve Quantities [Line Items]        
Revisions of previous estimates   2,600 22,900  
Revision of Previous Estimate Due to Lower Operating Expenses        
Reserve Quantities [Line Items]        
Revisions of previous estimates   5,200 (6,200)  
Revision of Previous Estimate Due to (Mis)Alignment With Development Plan        
Reserve Quantities [Line Items]        
Revisions of previous estimates       60,100
Positive (negative) revisions of previous estimates - proved undeveloped reserves     38,600  
Revisions Due to Addition of Proved Undeveloped Reserves (PUDs)        
Reserve Quantities [Line Items]        
Revisions of previous estimates       (5,600)
Williston Basin        
Reserve Quantities [Line Items]        
Proved developed reserve, increase (decrease)   404,700 68,400  
Purchases of reserves in place   349,800 57,000 0
Proved developed and undeveloped reserves, sale of mineral in place (energy)     0  
Williston Basin | Proved Undeveloped Reserves        
Reserve Quantities [Line Items]        
Proved developed reserves, percent   11.00%    
Williston Basin | Revision Due to Performance        
Reserve Quantities [Line Items]        
Revisions of previous estimates   6,700    
Williston Basin | Revision Due to Performance | Proved Undeveloped Reserves        
Reserve Quantities [Line Items]        
Positive (negative) revisions of previous estimates - proved developed reserves   (7,500)    
Permian Basin        
Reserve Quantities [Line Items]        
Proved developed and undeveloped reserves, sale of mineral in place (energy)   0    
Bakken or Three Forks Formations Area | Revision Due To Removal Of Midstream Operations        
Reserve Quantities [Line Items]        
Revisions of previous estimates     (5,200)