Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Commodity Derivative Positions (Detail)

v3.21.2
Derivative Instruments - Commodity Derivative Positions (Detail)
Sep. 30, 2021
bbl
$ / bbl
Crude Oil | Swap | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 45.54
Derivative, Nonmonetary Notional Amount | bbl 815
Crude Oil | Swap | Third Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 58.75
Derivative, Nonmonetary Notional Amount | bbl 457
Crude Oil | Swap | Fourth Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 58.75
Derivative, Nonmonetary Notional Amount | bbl 457
Crude Oil | Swap | First Quarter 2024  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 58.75
Derivative, Nonmonetary Notional Amount | bbl 462
Crude Oil | Swap | Second Quarter 2024  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 58.75
Derivative, Nonmonetary Notional Amount | bbl 308
Crude Oil | 2-Way Collars [Domain] | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 51.40
Derivative, Average Cap Price 62.23
Derivative, Nonmonetary Notional Amount | bbl 16,304
Crude Oil | 2-Way Collars [Domain] | First Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 53.94
Derivative, Average Cap Price 66.25
Derivative, Nonmonetary Notional Amount | bbl 13,750
Crude Oil | 2-Way Collars [Domain] | Second Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 47.37
Derivative, Average Cap Price 60.87
Derivative, Nonmonetary Notional Amount | bbl 7,830
Crude Oil | 2-Way Collars [Domain] | Third Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 44.00
Derivative, Average Cap Price 58.36
Derivative, Nonmonetary Notional Amount | bbl 6,114
Crude Oil | 2-Way Collars [Domain] | Fourth Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 40.00
Derivative, Average Cap Price 52.47
Derivative, Nonmonetary Notional Amount | bbl 4,484
Crude Oil | 2-Way Collars [Domain] | First Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 40.00
Derivative, Average Cap Price 50.00
Derivative, Nonmonetary Notional Amount | bbl 2,917
Crude Oil | 2-Way Collars [Domain] | Second Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 40.00
Derivative, Average Cap Price 50.00
Derivative, Nonmonetary Notional Amount | bbl 2,885
Crude Oil | CMA Roll Basis Swap [Domain] | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, CMA Roll Basis Swap, Price 0.168
Derivative, Nonmonetary Notional Amount | bbl 17,935
Crude Oil | CMA Roll Basis Swap [Domain] | First Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, CMA Roll Basis Swap, Price 0.625
Derivative, Nonmonetary Notional Amount | bbl 6,667
Crude Oil | CMA Roll Basis Swap [Domain] | Second Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, CMA Roll Basis Swap, Price 0.625
Derivative, Nonmonetary Notional Amount | bbl 6,593
Crude Oil | Purchased Put [Domain] | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Nonmonetary Notional Amount | bbl 3,261
Natural Gas [Member] | Swap | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 3.540
Derivative, Nonmonetary Notional Amount | bbl 6,739
Natural Gas [Member] | 2-Way Collars [Domain] | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.607
Derivative, Average Cap Price 3.117
Derivative, Nonmonetary Notional Amount | bbl 9,783
Derivative, Average Purchased Put Price 55.00
Natural Gas [Member] | 2-Way Collars [Domain] | First Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 4.150
Derivative, Average Cap Price 5.750
Derivative, Nonmonetary Notional Amount | bbl 3,333
Natural Gas [Member] | 2-Way Collars [Domain] | Second Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.500
Derivative, Average Cap Price 3.220
Derivative, Nonmonetary Notional Amount | bbl 13,187
Natural Gas [Member] | 2-Way Collars [Domain] | Third Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.500
Derivative, Average Cap Price 3.220
Derivative, Nonmonetary Notional Amount | bbl 13,043
Natural Gas [Member] | 2-Way Collars [Domain] | Fourth Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.500
Derivative, Average Cap Price 3.220
Derivative, Nonmonetary Notional Amount | bbl 13,043
Natural Gas [Member] | 2-Way Collars [Domain] | Second Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.500
Derivative, Average Cap Price 2.682
Derivative, Nonmonetary Notional Amount | bbl 11,538
Natural Gas [Member] | 2-Way Collars [Domain] | Third Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.500
Derivative, Average Cap Price 2.682
Derivative, Nonmonetary Notional Amount | bbl 11,413
Natural Gas [Member] | 2-Way Collars [Domain] | Fourth Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.500
Derivative, Average Cap Price 2.682
Derivative, Nonmonetary Notional Amount | bbl 11,413
Natural Gas [Member] | 2-Way Collars [Domain] | First Quarter 2024  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.500
Derivative, Average Cap Price 3.650
Derivative, Nonmonetary Notional Amount | bbl 11,538
Natural Gas [Member] | 2-Way Collars [Domain] | Second Quarter 2024  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.328
Derivative, Average Cap Price 3.000
Derivative, Nonmonetary Notional Amount | bbl 11,538
Natural Gas [Member] | Sold Put | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 2.000
Derivative, Nonmonetary Notional Amount | bbl 6,522
Natural Gas Liquids | Swap | Second Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 0.2500
Derivative, Nonmonetary Notional Amount | bbl 28,022
Natural Gas Liquids | Swap | Third Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 0.2500
Derivative, Nonmonetary Notional Amount | bbl 27,717
Natural Gas Liquids | Swap | Fourth Quarter 2022  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 0.2500
Derivative, Nonmonetary Notional Amount | bbl 27,717
Natural Gas Liquids | Swap | Second Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 0.2288
Derivative, Nonmonetary Notional Amount | bbl 98,901
Natural Gas Liquids | Swap | Third Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 0.2275
Derivative, Nonmonetary Notional Amount | bbl 34,239
Natural Gas Liquids | Swap | Fourth Quarter 2023  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 0.2275
Derivative, Nonmonetary Notional Amount | bbl 34,239
Natural Gas Liquids | Swap | First Quarter 2024  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 0.2275
Derivative, Nonmonetary Notional Amount | bbl 34,615