Quarterly report pursuant to Section 13 or 15(d)

Commodity Derivative Positions (Detail)

v3.20.2
Commodity Derivative Positions (Detail)
Jun. 30, 2020
bbl
$ / bbl
Crude Oil | Swap | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 51.17
Derivative, Nonmonetary Notional Amount | bbl 11,457
Crude Oil | Swap | Fourth Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 55.18
Derivative, Nonmonetary Notional Amount | bbl 9,804
Crude Oil | Swap | First Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 48.73
Derivative, Nonmonetary Notional Amount | bbl 6,667
Crude Oil | Swap | Second Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 48.73
Derivative, Nonmonetary Notional Amount | bbl 6,593
Crude Oil | 2-Way Collars [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 52.70
Derivative, Average Cap Price 58.26
Derivative, Nonmonetary Notional Amount | bbl 4,043
Crude Oil | 2-Way Collars [Domain] | Fourth Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 48.00
Derivative, Average Cap Price 57.10
Derivative, Nonmonetary Notional Amount | bbl 2,000
Crude Oil | 2-Way Collars [Domain] | First Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 47.50
Derivative, Average Cap Price 51.51
Derivative, Nonmonetary Notional Amount | bbl 3,333
Crude Oil | 2-Way Collars [Domain] | Second Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 47.50
Derivative, Average Cap Price 51.51
Derivative, Nonmonetary Notional Amount | bbl 3,297
Crude Oil | 2-Way Collars [Domain] | Third Quarter 2021 [Domain]  
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 3,261
Crude Oil | 2-Way Collars [Domain] | Fourth Quarter 2021 [Domain]  
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 3,261
Crude Oil | Purchased Puts Contract 1 [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 55.00
Derivative, Purchased Put Deferred Premium, Price 0.06
Derivative, Nonmonetary Notional Amount | bbl 2,174
Crude Oil | Purchased Puts Contract 2 [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 48.00
Derivative, Purchased Put Premium, Price 0.06
Derivative, Nonmonetary Notional Amount | bbl 674
Crude Oil | Purchased Puts Contract 3 [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 37.00
Derivative, Purchased Put Premium, Price 1.23
Derivative, Nonmonetary Notional Amount | bbl 2,174
Crude Oil | Purchased Puts Contract 4 [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 30.00
Derivative, Purchased Put Deferred Premium, Price 3.63
Derivative, Nonmonetary Notional Amount | bbl 2,717
Crude Oil | Purchased Puts Contract 5 [Domain] | First Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 36.00
Derivative, Purchased Put Premium, Price 4.50
Derivative, Nonmonetary Notional Amount | bbl 2,500
Crude Oil | Purchased Puts Contract 5 [Domain] | Second Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 36.00
Derivative, Purchased Put Premium, Price 4.50
Derivative, Nonmonetary Notional Amount | bbl 2,473
Crude Oil | Put Spread [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Put Spread Purchased Put, Price 39.00
Derivative, Put Spread Sold Put, Price 32.00
Derivative, Purchased Spread Deferred Premium, Price 3.25
Derivative, Nonmonetary Notional Amount | bbl 2,174
Crude Oil | Put Spread Contract 2 [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Put Spread Purchased Put, Price 30.00
Derivative, Put Spread Sold Put, Price 20.00
Derivative, Purchased Spread Deferred Premium, Price 2.45
Derivative, Nonmonetary Notional Amount | bbl 2,174
Crude Oil | Put Option | Fourth Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 43.50
Derivative, Nonmonetary Notional Amount | bbl 5,087
Crude Oil | Put Option | First Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 37.00
Derivative, Nonmonetary Notional Amount | bbl 10,833
Crude Oil | Put Option | Second Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 37.00
Derivative, Nonmonetary Notional Amount | bbl 10,714
Crude Oil | Put Option | Third Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 35.00
Derivative, Nonmonetary Notional Amount | bbl 3,261
Crude Oil | Put Option | Fourth Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 35.00
Derivative, Nonmonetary Notional Amount | bbl 3,261
Crude Oil | Basis Swap [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 1.04
Derivative, Nonmonetary Notional Amount | bbl 10,870
Crude Oil | CMA Roll Basis Swap [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, CMA Roll Basis Swap, Price (0.45)
Derivative, Nonmonetary Notional Amount | bbl 10,870
MEH [Domain] | Swap | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 61.03
Derivative, Nonmonetary Notional Amount | bbl 2,000
MEH [Domain] | Swap | Fourth Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Swap Type, Average Fixed Price 61.03
Derivative, Nonmonetary Notional Amount | bbl 2,000
Natural Gas [Member] | 2-Way Collars [Domain] | Third Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.00
Derivative, Average Cap Price 2.21
Derivative, Nonmonetary Notional Amount | bbl 12,804
Natural Gas [Member] | 2-Way Collars [Domain] | Fourth Quarter 2020 [Member]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.00
Derivative, Average Cap Price 2.21
Derivative, Nonmonetary Notional Amount | bbl 12,804
Natural Gas [Member] | 2-Way Collars [Domain] | First Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.50
Derivative, Average Cap Price 2.85
Derivative, Nonmonetary Notional Amount | bbl 3,333
Natural Gas [Member] | 2-Way Collars [Domain] | Second Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.50
Derivative, Average Cap Price 2.85
Derivative, Nonmonetary Notional Amount | bbl 3,297
Natural Gas [Member] | 2-Way Collars [Domain] | Third Quarter 2021 [Domain]  
Derivative Instruments Related to Oil and Gas Production [Line Items]  
Derivative, Average Floor Price 2.50
Derivative, Average Cap Price 2.85
Derivative, Nonmonetary Notional Amount | bbl 3,261
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 2.50
Derivative, Average Cap Price 2.85
Derivative, Nonmonetary Notional Amount | bbl 3,261