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Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Detail)
Sep. 30, 2020
MMBTU / d
bbl / d
$ / MMBTU
$ / bbl
$ / gal
2020 Commodity Contract | Swaps | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 1,133,587
Weighted Average Hedge Price, Swap 2.63 [1]
2020 Commodity Contract | Swaps | Crude Oil  
Derivative [Line Items]  
Volume Hedged | bbl / d 6,000
Weighted Average Hedge Price, Swap | $ / bbl 58.02
2020 Commodity Contract | Swaps | NGLs (C5-Natural Gasoline)  
Derivative [Line Items]  
Volume Hedged | bbl / d 2,000
Weighted Average Hedge Price, Swap | $ / gal 0.89
2020 Commodity Contract | Swaps | NGLs (C3-Propane)  
Derivative [Line Items]  
Volume Hedged | bbl / d 6,000
Weighted Average Hedge Price, Swap | $ / gal 0.51
2020 Commodity Contract | Swaps | NGLs (NC4-Normal Butane)  
Derivative [Line Items]  
Volume Hedged | bbl / d 1,000
Weighted Average Hedge Price, Swap | $ / gal 0.60
2020 Commodity Contract | Collars | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 5,041
2020 Commodity Contract | Three Way Collars | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 79,891
Weighted average price of hedge, Floor 2.58
Weighted average price of hedge, Ceiling 3.19
Weighted Average Hedge Price, Sold Put 2.23
2020 Commodity Contract | Collars | Natural Gas  
Derivative [Line Items]  
Weighted average price of hedge, Floor 2.00
Weighted average price of hedge, Ceiling 2.50
2021 Commodity Contract | Swaps | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 510,000
Weighted Average Hedge Price, Swap 2.77 [1]
2021 Commodity Contract | Swaps | Crude Oil  
Derivative [Line Items]  
Volume Hedged | bbl / d 1,000
Weighted Average Hedge Price, Swap | $ / bbl 55.00
2021 Commodity Contract | Three Way Collars | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 240,000
Weighted average price of hedge, Floor 2.33
Weighted average price of hedge, Ceiling 2.60
Weighted Average Hedge Price, Sold Put 1.99
January – October 2021 Commodity Contract | Collars | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 342,237
January – October 2021 Commodity Contract | Collars | Natural Gas  
Derivative [Line Items]  
Weighted average price of hedge, Floor 2.51
Weighted average price of hedge, Ceiling 3.00
[1] We also sold natural gas call swaptions of 140,000 Mmbtu/day for 2021 at a weighted average price of $2.88. In addition, we sold natural gas call swaptions of 280,000 bbls per day for 2022 at a weighted average price of $2.81.