XML 36 R26.htm IDEA: XBRL DOCUMENT v3.21.2
Derivatives - Narrative (Details)
MBbls in Thousands, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 31, 2021
MMBTU
$ / bbl
$ / MMBtu
bbl
Dec. 31, 2021
USD ($)
$ / bbl
MBbls
Sep. 30, 2021
USD ($)
MMBTU / d
Sep. 30, 2020
USD ($)
Dec. 31, 2024
$ / bbl
MBbls
Dec. 31, 2023
$ / bbl
MBbls
Dec. 31, 2022
$ / bbl
MBbls
Derivative [Line Items]              
Target period to cover operating expenses and fixed charges (up to)     3 years        
Target period for fixing the price natural gas purchases used in steam operations (up to)     2 years        
Deferred premiums, remaining     $ 24,000        
Gain on derivative     $ (85,672) $ 160,222      
Northwest Pipeline Rocky Mountains And CIG Fixed Price Oils And Gas Swaps Contracts              
Derivative [Line Items]              
Fixed price swaps as buyer and seller (in mmbtu/d) | MMBTU / d     12,500        
Northwest Pipeline Rocky Mountains And CIG Fixed Price Oils And Gas Swaps Contracts | Forecast              
Derivative [Line Items]              
Gain on derivative   $ 1,000          
Purchased Gas Puts Options | Subsequent Event              
Derivative [Line Items]              
Hedged volume (in mmbtu) | MMBTU 20,000            
Weighted-average price (in dollars per mmbtu) | $ / MMBtu 2.75            
Sold Oil Put Options Contracts | Subsequent Event              
Derivative [Line Items]              
Weighted-average price (in dollars per mmbtu) | $ / MMBtu 60.00            
Hedged volume (in bbls) | bbl 500            
Sold Oil Put Options Contracts | Forecast              
Derivative [Line Items]              
Weighted-average price (in dollars per mmbtu) | $ / bbl   0     40.00 40.00 40.00
Hedged volume (in bbls) | MBbls   0     1,647 2,555 1,643
Purchased Fixed Price Oil Swaps | Subsequent Event              
Derivative [Line Items]              
Hedged volume (in bbls) | bbl 1,000            
Weighted-average price (in dollars per bbl) | $ / bbl 66.95