Commitments - Schedule of Firm Sales Contracted with Third Parties (Details) |
Dec. 31, 2017
MMBTU
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| Commitments and Contingencies Disclosure [Abstract] | |
| 2018 | 560,800 |
| 2019 | 659,000 |
| 2020 | 526,000 |
| 2021 | 372,000 |
| 2022 | 272,000 |
| Thereafter | 240,000 |
| Total | 2,629,800 |
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- Definition Supply Commitment, Due After Fifth Year No definition available.
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- Definition Supply Commitment, Due in Next Twelve Months No definition available.
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- Definition Supply Commitment, Due in Year Five No definition available.
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- Definition Supply Commitment, Due in Year Four No definition available.
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- Definition Supply Commitment, Due in Year Three No definition available.
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- Definition Supply Commitment, Due in Year Two No definition available.
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- Definition Supply Commitment, Total No definition available.
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- References No definition available.
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