Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Hedging) (Details)

v3.20.2
Subsequent Events (Hedging) (Details) - Forecast - Not Designated as Hedging Instrument
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2022
bbl
Dec. 31, 2020
MMBTU
$ / MMBTU
$ / bbl
bbl
Dec. 31, 2020
$ / MMBTU
$ / bbl
bbl
Dec. 31, 2021
MMBTU
$ / MMBTU
$ / bbl
bbl
Commodity - Oil | Short | Call option        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl   920,000   4,825,300
Weighted average price (in dollars per share) | $ / MMBTU   55.00 55.00 63.62
Commodity - Oil | Short | Put option        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl 0   1,104,000  
Weighted average price (in dollars per share) | $ / bbl   42.50 42.50 0
Commodity - Oil | Long | Call option        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl 0   920,000  
Weighted average price (in dollars per share) | $ / bbl   67.50 67.50 0
Commodity - Oil | Swap contracts        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl   6,291,880   0
Weighted average price (in dollars per share) | $ / MMBTU   42.08 42.08 0
Commodity - Oil | Oil contracts (WTI) | Swap contracts        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl   0   1,377,000
Weighted average price (in dollars per share) | $ / bbl   0 0 42.00
Commodity - Oil | Collar contracts        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl 3,741,250   0  
Commodity - Oil | Collar contracts | Short | Call option        
Subsequent Event [Line Items]        
Weighted average price (in dollars per share) | $ / bbl   0 0 45.02
Commodity - Oil | Collar contracts | Long | Put option        
Subsequent Event [Line Items]        
Weighted average price (in dollars per share) | $ / bbl   0 0 40.00
Commodity - Oil | Short call swaption contracts | Swap contracts        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl   0   730,000
Weighted average price (in dollars per share) | $ / MMBTU   0 0 47.00
Commodity - Oil | Midland basis differential | Swap contracts        
Subsequent Event [Line Items]        
Total volume (Bbls) | bbl   1,514,500   0
Weighted average price (in dollars per share) | $ / bbl   0.60 0.60 0
Commodity - Natural gas | Short | Call option        
Subsequent Event [Line Items]        
Weighted average price (in dollars per share) | $ / MMBTU   3.50 3.50 3.09
Total volume (MMBtu) | MMBTU   6,072,000   7,300,000
Commodity - Natural gas | Swap contracts        
Subsequent Event [Line Items]        
Weighted average price (in dollars per share) | $ / MMBTU   2.21 2.21 2.66
Total volume (MMBtu) | MMBTU   5,530,000   12,923,000
Commodity - Natural gas | Natural gas contracts (Henry Hub)        
Subsequent Event [Line Items]        
Weighted average price (in dollars per share) | $ / MMBTU   3.50 3.50 0
Total volume (MMBtu) | MMBTU   3,036,000   0
Commodity - Natural gas | Natural gas contracts (Henry Hub) | Swap contracts        
Subsequent Event [Line Items]        
Weighted average price (in dollars per share) | $ / MMBTU   1.80 1.80 0
Total volume (MMBtu) | MMBTU   3,036,000   0
Commodity - Natural gas | Waha basis differential | Swap contracts        
Subsequent Event [Line Items]        
Total volume (MMBtu) | MMBTU   0   6,387,500
Weighted average price (in dollars per share) | $ / MMBTU   0 0 (0.58)