Quarterly report pursuant to Section 13 or 15(d)

Derivative instruments - Impact of Derivatives on the Balance Sheet and Income Statement (Details)

v3.22.2.2
Derivative instruments - Impact of Derivatives on the Balance Sheet and Income Statement (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Derivative instruments          
Derivative assets, current portion $ 4,376   $ 4,376    
Derivative assets, noncurrent portion 812   812    
Derivative liabilities, current portion (3,941)   (3,941)   $ (3,953)
Derivative liabilities, noncurrent portion         (400)
Change in unrealized gain/(loss) on derivatives     5,600 $ (11,010)  
Total gain/(loss) on derivative contracts 6,082 $ (6,558) (19,147) (18,115)  
Primary underlying risk, Commodity Price | Non-hedging derivative instruments          
Derivative instruments          
Derivative assets, current portion 4,376   4,376    
Derivative assets, noncurrent portion 812   812    
Derivative liabilities, current portion (3,941)   (3,941)   (3,953)
Derivative liabilities, noncurrent portion         (400)
Realized loss on derivatives (9,331) (3,959) (24,747) (7,105)  
Change in unrealized gain/(loss) on derivatives 15,413 (2,599) 5,600 (11,010)  
Total gain/(loss) on derivative contracts 6,082 (6,558) (19,147) (18,115)  
Crude oil | Primary underlying risk, Commodity Price | Non-hedging derivative instruments          
Derivative instruments          
Derivative assets, current portion 4,581   4,581    
Derivative assets, noncurrent portion 812   812    
Derivative liabilities, current portion (1,865)   (1,865)   (3,465)
Derivative liabilities, noncurrent portion         (411)
Realized loss on derivatives (4,971) (2,324) (15,388) (2,583)  
Change in unrealized gain/(loss) on derivatives 16,571 721 7,404 (6,775)  
Total gain/(loss) on derivative contracts 11,600 (1,603) (7,984) (9,358)  
Natural gas | Primary underlying risk, Commodity Price | Non-hedging derivative instruments          
Derivative instruments          
Derivative assets, current portion (205)   (205)    
Derivative liabilities, current portion (2,076)   (2,076)   (488)
Derivative liabilities, noncurrent portion         $ 11
Realized loss on derivatives (4,360) (1,635) (9,359) (4,522)  
Change in unrealized gain/(loss) on derivatives (1,158) (3,320) (1,804) (4,235)  
Total gain/(loss) on derivative contracts $ (5,518) $ (4,955) $ (11,163) $ (8,757)