Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE INSTRUMENTS AND PRICE RISK MANAGEMENT - Summary of Open Commodity Derivative Positions (Details)

v3.21.1
DERIVATIVE INSTRUMENTS AND PRICE RISK MANAGEMENT - Summary of Open Commodity Derivative Positions (Details)
Mar. 31, 2021
MMBTU
bbl
$ / MMBTU
$ / bbl
WTI NYMEX - Swaps | 2021  
Derivative [Line Items]  
Volume | bbl 6,350,574
Weighted average price (in dollars per unit) | $ / bbl 54.80
WTI NYMEX - Swaps | 2022  
Derivative [Line Items]  
Volume | bbl 4,218,250
Weighted average price (in dollars per unit) | $ / bbl 51.66
WTI NYMEX - Swaps | 2023  
Derivative [Line Items]  
Volume | bbl 112,500
Weighted average price (in dollars per unit) | $ / bbl 51.65
WTI NYMEX - Swaps | 2024  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
WTI NYMEX - Swaptions | 2021  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
WTI NYMEX - Swaptions | 2022  
Derivative [Line Items]  
Volume | bbl 1,496,125
Weighted average price (in dollars per unit) | $ / bbl 50.13
WTI NYMEX - Swaptions | 2023  
Derivative [Line Items]  
Volume | bbl 3,691,000
Weighted average price (in dollars per unit) | $ / bbl 50.31
WTI NYMEX - Swaptions | 2024  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
Bakken Crude UHC To WTI NYMEX - Basis Swaps | 2021  
Derivative [Line Items]  
Volume | bbl 4,155,800
Weighted average price (in dollars per unit) | $ / bbl (2.40)
Bakken Crude UHC To WTI NYMEX - Basis Swaps | 2022  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
Bakken Crude UHC To WTI NYMEX - Basis Swaps | 2023  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
Bakken Crude UHC To WTI NYMEX - Basis Swaps | 2024  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
WTI NYMEX - Call Options | 2021  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
WTI NYMEX - Call Options | 2022  
Derivative [Line Items]  
Volume | bbl 0
Weighted average price (in dollars per unit) | $ / bbl 0
WTI NYMEX - Call Options | 2023  
Derivative [Line Items]  
Volume | bbl 365,000
Weighted average price (in dollars per unit) | $ / bbl 55.00
WTI NYMEX - Call Options | 2024  
Derivative [Line Items]  
Volume | bbl 1,275,000
Weighted average price (in dollars per unit) | $ / bbl 52.89
Henry Hub NYMEX - Swaps | 2021  
Derivative [Line Items]  
Volume 22,637,745
Weighted average price (in dollars per unit) | $ / MMBTU 2.81
Henry Hub NYMEX - Swaps | 2022  
Derivative [Line Items]  
Volume 5,450,000
Weighted average price (in dollars per unit) | $ / MMBTU 2.80
Henry Hub NYMEX - Swaps | 2023  
Derivative [Line Items]  
Volume 0
Weighted average price (in dollars per unit) | $ / MMBTU 0
Henry Hub NYMEX - Swaps | 2024  
Derivative [Line Items]  
Volume 0
Weighted average price (in dollars per unit) | $ / MMBTU 0
Waha Inside FERC to Henry Hub - Basis Swaps | 2021  
Derivative [Line Items]  
Volume 69,000
Weighted average differential (in dollars per unit) | $ / bbl (0.28)
Waha Inside FERC to Henry Hub - Basis Swaps | 2022  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / bbl 0
Waha Inside FERC to Henry Hub - Basis Swaps | 2023  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / bbl 0
Waha Inside FERC to Henry Hub - Basis Swaps | 2024  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / bbl 0
Columbia/TCO-POOL - Basis Swaps | 2021  
Derivative [Line Items]  
Volume 1,959,697
Weighted average differential (in dollars per unit) | $ / MMBTU (0.45)
Columbia/TCO-POOL - Basis Swaps | 2022  
Derivative [Line Items]  
Volume 1,067,187
Weighted average differential (in dollars per unit) | $ / MMBTU (0.43)
Columbia/TCO-POOL - Basis Swaps | 2023  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / MMBTU 0
Columbia/TCO-POOL - Basis Swaps | 2024  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / MMBTU 0
Dominion - App - Basis Swaps | 2021  
Derivative [Line Items]  
Volume 653,232
Weighted average differential (in dollars per unit) | $ / MMBTU (0.64)
Dominion - App - Basis Swaps | 2022  
Derivative [Line Items]  
Volume 355,729
Weighted average differential (in dollars per unit) | $ / MMBTU (0.64)
Dominion - App - Basis Swaps | 2023  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / MMBTU 0
Dominion - App - Basis Swaps | 2024  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / MMBTU 0
NE - TETCO M2 - Basis Swaps | 2021  
Derivative [Line Items]  
Volume 3,919,394
Weighted average differential (in dollars per unit) | $ / MMBTU (0.68)
NE - TETCO M2 - Basis Swaps | 2022  
Derivative [Line Items]  
Volume 2,134,374
Weighted average differential (in dollars per unit) | $ / MMBTU (0.71)
NE - TETCO M2 - Basis Swaps | 2023  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / MMBTU 0
NE - TETCO M2 - Basis Swaps | 2024  
Derivative [Line Items]  
Volume 0
Weighted average differential (in dollars per unit) | $ / MMBTU 0
TET-OPIS - Swaps | 2021  
Derivative [Line Items]  
Volume 92,000
Weighted average price (in dollars per unit) | $ / MMBTU 34.34
TET-OPIS - Swaps | 2022  
Derivative [Line Items]  
Volume 0
Weighted average price (in dollars per unit) | $ / MMBTU 0
TET-OPIS - Swaps | 2023  
Derivative [Line Items]  
Volume 0
Weighted average price (in dollars per unit) | $ / MMBTU 0
TET-OPIS - Swaps | 2024  
Derivative [Line Items]  
Volume 0
Weighted average price (in dollars per unit) | $ / MMBTU 0