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Derivative Financial Instruments (Details) |  | 2 Months Ended
--- | --- | ---
Dec. 31, 2016 MMBTU $ / EnergyContent $ / Barrels bbl | Feb. 15, 2017 $ / Barrels bbl
NYMEX Oil Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 11,300,000 |
NGL Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 13,400,000 |
NYMEX Oil Swap Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 46.41 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 1,574,000 |
NYMEX Oil Swap Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 46.44 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 1,444,000 |
NYMEX Oil Swap Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 46.66 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 1,340,000 |
NYMEX Oil Swap Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 46.35 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 1,254,000 |
NYMEX Oil Swap Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 5,612,000 |
NYMEX Oil Collar Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Floor Price |  | 45.00 |
Derivative, Cap Price |  | 54.17 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 704,000 |
NYMEX Oil Collar Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Floor Price |  | 45.00 |
Derivative, Cap Price |  | 54.10 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 636,000 |
NYMEX Oil Collar Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Floor Price |  | 45.00 |
Derivative, Cap Price |  | 54.05 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 583,000 |
NYMEX Oil Collar Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Floor Price |  | 45.00 |
Derivative, Cap Price |  | 54.01 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 540,000 |
NYMEX Oil Collar Contract 2018 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Floor Price |  | 50.00 |
Derivative, Cap Price |  | 59.24 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 2,312,000 |
NYMEX Oil Collar Contract 2019 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Floor Price |  | 50.00 |
Derivative, Cap Price |  | 61.15 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 943,000 |
NYMEX Oil Collar Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 5,718,000 |
Gas Swaps Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU |  | 29,420,000 |
Weighted- Average Contract Price | $ / EnergyContent |  | 3.76 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Purchased Volumes | MMBTU | [1] | 0 |
Derivative, Swap Type, Average Fixed Price, Purchased Volumes | $ / EnergyContent |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Net of Purchased Volumes | MMBTU |  | 29,420,000 |
Gas Swaps Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU |  | 26,205,000 |
Weighted- Average Contract Price | $ / EnergyContent |  | 3.98 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Purchased Volumes | MMBTU | [1] | 0 |
Derivative, Swap Type, Average Fixed Price, Purchased Volumes | $ / EnergyContent |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Net of Purchased Volumes | MMBTU |  | 26,205,000 |
Gas Swaps Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU |  | 23,657,000 |
Weighted- Average Contract Price | $ / EnergyContent |  | 4.01 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Purchased Volumes | MMBTU | [1] | 0 |
Derivative, Swap Type, Average Fixed Price, Purchased Volumes | $ / EnergyContent |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Net of Purchased Volumes | MMBTU |  | 23,657,000 |
Gas Swaps Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU |  | 22,001,000 |
Weighted- Average Contract Price | $ / EnergyContent |  | 3.98 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Purchased Volumes | MMBTU | [1] | 0 |
Derivative, Swap Type, Average Fixed Price, Purchased Volumes | $ / EnergyContent |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Net of Purchased Volumes | MMBTU |  | 22,001,000 |
Gas Swaps Contract 2018 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU |  | 63,166,000 |
Weighted- Average Contract Price | $ / EnergyContent |  | 3.68 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Purchased Volumes | MMBTU | [1] | (30,606,000) |
Derivative, Swap Type, Average Fixed Price, Purchased Volumes | $ / EnergyContent |  | 4.27 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Net of Purchased Volumes | MMBTU |  | 32,560,000 |
Gas Swaps Contract 2019 [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU |  | 27,743,000 |
Weighted- Average Contract Price | $ / EnergyContent |  | 4.20 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Purchased Volumes | MMBTU | [1] | (24,415,000) |
Derivative, Swap Type, Average Fixed Price, Purchased Volumes | $ / EnergyContent |  | 4.34 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Net of Purchased Volumes | MMBTU |  | 3,328,000 |
Gas Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Energy Measure | MMBTU | [2] | 192,192,000 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Purchased Volumes | MMBTU | [1],[2] | (55,021,000) |
Derivative, Nonmonetary Notional Amount, Energy Measure, Net of Purchased Volumes | MMBTU | [2] | 137,171,000 |
Gas Swaps Contract 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price | $ / EnergyContent |  | 4.43 |
Derivative, Nonmonetary Notional Amount, Energy Measure, Sold Volumes | MMBTU |  | 38,600,000 |
IF El Paso Permian [Member] |  |  |
Derivative Financial Instruments |  |  |
Index percent of natural gas fixed swaps |  | 3.00% |
IF HSC [Member] |  |  |
Derivative Financial Instruments |  |  |
Index percent of natural gas fixed swaps |  | 94.00% |
IF NNG Ventura [Member] |  |  |
Derivative Financial Instruments |  |  |
Index percent of natural gas fixed swaps |  | 3.00% |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 8.63 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 847,000 |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 8.86 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 787,000 |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 9.14 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 736,000 |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 9.10 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 692,000 |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contract 2018 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 10.18 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 2,434,000 |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contract 2019 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 11.95 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 2,176,000 |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contract 2020 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 11.13 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 539,000 |
OPIS Ethane Purity Mont Belvieu [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 8,211,000 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 21.90 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 692,000 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 21.90 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 634,000 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 21.91 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 588,000 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 21.91 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 550,000 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2018 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 22.86 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 1,442,000 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2019 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2020 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Propane Mont Belvieu Non-TET [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 3,906,000 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 30.69 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 122,000 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 30.69 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 112,000 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 30.70 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 104,000 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 30.70 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 98,000 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2018 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2019 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2020 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Normal Butane Mont Belvieu Non-TET [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 436,000 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 31.12 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 94,000 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 31.12 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 86,000 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 31.12 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 80,000 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 31.12 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 74,000 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2018 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2019 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2020 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Isobutane Mont Belvieu Non-TET [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 334,000 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contract First Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 47.54 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 156,000 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contract Second Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 47.56 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 143,000 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contract Third Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 47.59 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 133,000 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contract Fourth Quarter 2017 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 47.61 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 124,000 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2018 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2019 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contract 2020 [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted- Average Contract Price |  | 0.00 |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 0 |
OPIS Natural Gasoline Mont Belvieu Non-TET [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  | 556,000 |
Subsequent Event [Member] | NYMEX Oil Collar Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Floor Price |  |  | 50.00
Derivative, Nonmonetary Notional Amount, Volume | bbl |  |  | 2,700,000
Subsequent Event [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  |  | 1,100,000
Subsequent Event [Member] | Oil Basis Swap [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Nonmonetary Notional Amount, Volume | bbl |  |  | 3,700,000
Minimum [Member] | Subsequent Event [Member] | NYMEX Oil Collar Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Cap Price |  |  | 57.00
Minimum [Member] | Subsequent Event [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Swap Type, Fixed Price |  |  | 35.07
Minimum [Member] | Subsequent Event [Member] | Oil Basis Swap [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted Average Differential to WTI |  |  | (1.23)
Maximum [Member] | Subsequent Event [Member] | NYMEX Oil Collar Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Cap Price |  |  | 58.40
Maximum [Member] | Subsequent Event [Member] | NGL Swaps Contracts [Member] |  |  |
Derivative Financial Instruments |  |  |
Derivative, Swap Type, Fixed Price |  |  | 49.88
Maximum [Member] | Subsequent Event [Member] | Oil Basis Swap [Member] |  |  |
Derivative Financial Instruments |  |  |
Weighted Average Differential to WTI |  |  | (1.45)
[1] | During 2016, the Company restructured certain of its gas derivative contracts by buying fixed price volumes to offset existing 2018 and 2019 fixed price swap contracts totaling 55.0 million MMBtu. The Company then entered into new 2017 fixed price swap contracts totaling 38.6 million MMBtu with a contract price of $4.43 per MMBtu. No cash or other consideration was included as part of the restructuring.
[2] | Total net volumes of natural gas swaps are comprised of IF El Paso Permian (3%), IF HSC (94%), and IF NNG Ventura (3%).

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- Definition Floor rate on a price risk derivative such as a floor or a collar. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. + References No definition available. + Details
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