Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Assets and liabilities (Details)

v3.21.1
Derivative Instruments - Assets and liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Commodity derivative    
Commodity derivative assets    
Gross amounts on balance sheet $ 90,891 $ 181,375
Gross amounts offset on balance sheet (38,577) (69,542)
Total asset derivatives 52,314 111,833
Commodity derivative liabilities    
Gross amounts on balance sheet (284,241) (199,956)
Gross amounts offset on balance sheet 38,577 69,542
Total liability derivatives (245,664) (130,414)
Embedded derivatives    
Commodity derivative assets    
Gross amounts on balance sheet 32,282 40,590
Total asset derivatives $ 32,282 $ 40,590