Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Commodity derivatives (Details)

v3.21.1
Derivative Instruments - Commodity derivatives (Details)
3 Months Ended
Mar. 31, 2021
MMBTU / d
$ / bbl
$ / MMBTU
$ / gal
MMBbls
bbl
Natural gas | April-December 2021  
Derivative Instruments  
Notional amount | MMBbls 47,385
Weighted average index price | $ / MMBTU 2.61
Natural gas | January-December 2022  
Derivative Instruments  
Notional amount | MMBbls 38,356
Weighted average index price | $ / MMBTU 2.39
Natural gas | January-December 2023  
Derivative Instruments  
Notional amount | MMBbls 35,615
Weighted average index price | $ / MMBTU 2.35
Natural gas | January-December 2024  
Derivative Instruments  
Notional amount | MMBbls 23,885
Weighted average index price | $ / MMBTU 2.33
Natural gas | January-March 2025  
Derivative Instruments  
Notional amount | MMBbls 18,021
Weighted average index price | $ / MMBTU 2.53
Natural gas | NYMEX to TCO | April-December 2021  
Derivative Instruments  
Notional amount (MMBtu/day) | MMBTU / d 40,000
Natural gas | NYMEX to TCO | January-December 2022  
Derivative Instruments  
Notional amount (MMBtu/day) | MMBTU / d 60,000
Natural gas | NYMEX to TCO | January-December 2023  
Derivative Instruments  
Notional amount (MMBtu/day) | MMBTU / d 50,000
Natural gas | NYMEX to TCO | January-December 2024  
Derivative Instruments  
Notional amount (MMBtu/day) | MMBTU / d 50,000
Ethane | April-December 2021  
Derivative Instruments  
Notional amount 1,033
Weighted average index price | $ / bbl 7.01
Ethane | January-March 2022  
Derivative Instruments  
Notional amount 521
Weighted average index price | $ / bbl 6.68
Propane | April-December 2021  
Derivative Instruments  
Notional amount 1,149
Weighted average index price | $ / bbl 18.71
Propane | January-December 2022  
Derivative Instruments  
Notional amount 934
Weighted average index price | $ / bbl 19.20
Natural Gasoline | April-December 2021  
Derivative Instruments  
Notional amount 354
Weighted average index price | $ / bbl 31.61
Natural Gasoline | January-December 2022  
Derivative Instruments  
Notional amount 282
Weighted average index price | $ / bbl 34.37
Natural Gasoline | January-December 2023  
Derivative Instruments  
Notional amount 247
Weighted average index price | $ / bbl 40.74
Oil | April-December 2021  
Derivative Instruments  
Notional amount 129
Weighted average index price | $ / bbl 40.86
Oil | January-December 2022  
Derivative Instruments  
Notional amount 112
Weighted average index price | $ / bbl 43.51
Oil | January-December 2023  
Derivative Instruments  
Notional amount 99
Weighted average index price | $ / bbl 44.88
Oil | January-December 2024  
Derivative Instruments  
Notional amount 43
Weighted average index price | $ / bbl 44.02
Oil | January-March 2025  
Derivative Instruments  
Notional amount 39
Weighted average index price | $ / bbl 45.06
Swaps | Natural gas | April-December 2021  
Derivative Instruments  
Notional amount | MMBbls 2,160,000
Weighted average index price | $ / MMBTU 2.76
Swaps | Natural gas | January-December 2022  
Derivative Instruments  
Notional amount | MMBbls 1,155,486
Weighted average index price | $ / MMBTU 2.50
Swaps | Natural gas | January-December 2023  
Derivative Instruments  
Notional amount 43,000
Weighted average index price | $ / gal 2.37
Swaps | Propane | April-December 2021  
Derivative Instruments  
Notional amount 16,655
Weighted average index price | $ / MMBTU 30.64
Swaps | Butane | OPIS Butane Mt Belv Non-TET | April-December 2021  
Derivative Instruments  
Notional amount 3,331
Weighted average index price | $ / bbl 33.42
Swaps | Butane | OPIS Butane Mt Belv TET | April-December 2021  
Derivative Instruments  
Notional amount 1,415
Weighted average index price | $ / bbl 31.36
Swaps | Natural Gasoline | April-December 2021  
Derivative Instruments  
Notional amount 8,617
Weighted average index price | $ / bbl 51.19
Swaps | Isobutane | April-June 2021  
Derivative Instruments  
Notional amount 662
Weighted average index price | $ / bbl 33.30
Swaps | Oil | April-December 2021  
Derivative Instruments  
Notional amount 3,000
Weighted average index price | $ / MMBTU 55.16
Fixed price swap agreement  
Derivative Instruments  
Notional amount (MMBtu/day) | MMBTU / d 427,500
Fixed price ($/MMBtu) | $ / MMBTU 2.77