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Derivative Instruments - Schedule of Derivative Instruments (Details) | 12 Months Ended
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Dec. 31, 2017 MMBTU $ / bbl $ / MMBTU bbl
NYMEX Henry Hub Swap - 2018 |
Derivative [Line Items] |
Daily Volume (MMBtu/day) | MMBTU | 908,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / MMBTU | 3.06
NYMEX Henry Hub Swap - 2019 |
Derivative [Line Items] |
Daily Volume (MMBtu/day) | MMBTU | 269,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / MMBTU | 2.93
ARGUS LLS Swap - 2018 |
Derivative [Line Items] |
Daily Volume (Bbls/day) | bbl | 1,500
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / bbl | 56.22
NYMEX WTI Swap - 2018 |
Derivative [Line Items] |
Daily Volume (Bbls/day) | bbl | 4,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / bbl | 52.20
Mont Belvieu C3 Swap - 2018 |
Derivative [Line Items] |
Daily Volume (Bbls/day) | bbl | 3,500
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / bbl | 28.03
Mont Belvieu C5 Swap - 2018 |
Derivative [Line Items] |
Daily Volume (Bbls/day) | bbl | 500
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / bbl | 46.62
NYMEX Henry Hub - January 2018 - March 2018 | Call option | Short |
Derivative [Line Items] |
Daily Volume (MMBtu/day) | MMBTU | 20,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / MMBTU | 2.91
NYMEX Henry Hub Swap - April 2018 to March 2019 | Call option | Short |
Derivative [Line Items] |
Daily Volume (MMBtu/day) | MMBTU | 50,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / MMBTU | 3.13
NYMEX Henry Hub Swap - April 2019 to December 2019 | Call option | Short |
Derivative [Line Items] |
Daily Volume (MMBtu/day) | MMBTU | 30,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / MMBTU | 3.10
NPGL Mid-Continent Swap - 2018 | Call option | Short |
Derivative [Line Items] |
Daily Volume (MMBtu/day) | MMBTU | 12,000
Weighted average price of derivative swap (usd per MMBtu or Bbls) | $ / MMBTU | 0.26

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