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Derivative Activities - Derivative Volumes Hedged and Average Hedge Prices (Detail)
Jun. 30, 2019
MMBTU / d
bbl / d
$ / MMBTU
$ / bbl
$ / gal
2019 Commodity Contract | Swaps | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 1,262,473
Weighted Average Hedge Price | $ / MMBTU 2.81
2019 Commodity Contract | Swaps | Crude Oil  
Derivative [Line Items]  
Volume Hedged | bbl / d 8,750
Weighted Average Hedge Price | $ / bbl 55.89
2019 Commodity Contract | Swaps | NGLs (C5-Natural Gasoline)  
Derivative [Line Items]  
Volume Hedged | bbl / d 4,500
Weighted Average Hedge Price | $ / gal 1.36
2019 Commodity Contract | Swaptions | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 150,000
Weighted Average Hedge Price | $ / MMBTU 2.81 [1]
2019 Commodity Contract | Collars | Crude Oil  
Derivative [Line Items]  
Volume Hedged | bbl / d 1,000
2019 Commodity Contract | Collars | Crude Oil | Minimum  
Derivative [Line Items]  
Weighted Average Hedge Price | $ / gal 63.00
2019 Commodity Contract | Collars | Crude Oil | Maximum  
Derivative [Line Items]  
Weighted Average Hedge Price | $ / gal 73.00
2020 Commodity Contract | Swaps | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 305,000
Weighted Average Hedge Price | $ / MMBTU 2.76
2020 Commodity Contract | Swaps | Crude Oil  
Derivative [Line Items]  
Volume Hedged | bbl / d 4,617
Weighted Average Hedge Price | $ / bbl 60.48
2020 Commodity Contract | Swaptions | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 177,568
Weighted Average Hedge Price | $ / MMBTU 2.78 [1]
November-December 2019 Commodity Contract | Swaptions | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 20,000
Weighted Average Hedge Price | $ / MMBTU 3.20 [1]
January-March 2020 Commodity Contract | Swaptions | Natural Gas  
Derivative [Line Items]  
Volume Hedged | MMBTU / d 20,000
Weighted Average Hedge Price | $ / MMBTU 3.20 [1]
[1] Contains a combined derivative instrument consisting of a fixed price swap and a sold option to extend or double the volumes. We have swaps in place for 2019 for 150,000 Mmbtu/day on which the counterparty can elect to extend the contract through December 2020 at a weighted average price of $2.81. In addition, we have swaps in place for November and December 2019 where, if the counterparty elects to double the volume, we would have additional swaps in place for 20,000 Mmbtu/day at a weighted average price of $3.20. In 2020, if the counterparty elects to double the volume, we would have additional swaps in place for 140,000 Mmbtu/day at a weighted average price of $2.78. We also have swaps in place for 2020 for 50,000 Mmbtu/day on which the counterparty can elect to extend the contract through December 2021 at a weighted average price of $2.75. In addition, for January through March 2020, we have additional swaps in place where if the counterparty elects to double the volume, we would have an additional 20,000 Mmbtu/day at a weighted average price of $3.20.