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Segment Reporting (Tables) | 12 Months Ended
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Dec. 31, 2016
Segment Reporting [Abstract] |
Schedule of Segment Reporting Information, by Segment |
| Exploration and Production |  |  |  |  |  |  |  | Consolidated Company
|  | Midstream |  | Corporate |  | Eliminations |
Year Ended December 31, 2016 |  |  |  |  |  |  |  |  |
Oil and natural gas revenues | $ | 289,512 |  |  | $ | 1,644 |  |  | $ | — |  |  | $ | — |  |  | $ | 291,156 |
Midstream services revenues | — |  |  | 18,982 |  |  | — |  |  | (13,764 | ) |  | 5,218 |
Realized gain on derivatives | 9,286 |  |  | — |  |  | — |  |  | — |  |  | 9,286 |
Unrealized gain on derivatives | (41,238 | ) |  | — |  |  | — |  |  | — |  |  | (41,238 | )
Expenses (1) | 391,098 |  |  | 8,254 |  |  | 56,001 |  |  | (13,764 | ) |  | 441,589 |
Operating (loss) income (2) | $ | (133,538 | ) |  | $ | 12,372 |  |  | $ | (56,001 | ) |  | $ | — |  |  | $ | (177,167 | )
Total Assets | $ | 1,098,525 |  |  | $ | 140,459 |  |  | $ | 225,681 |  |  | $ | — |  |  | $ | 1,464,665 |
Capital Expenditures | $ | 379,881 |  |  | $ | 67,566 |  |  | $ | 6,913 |  |  | $ | — |  |  | $ | 454,360 |
_____________________ (1) Expenses include depreciation, depletion and amortization expenses of $118.4 million, $2.7 million and $0.9 million for the exploration and production, midstream and corporate segments, respectively, and full-cost ceiling impairment expense of $158.6 million for the exploration and production segment. (2) Includes $0.4 million in net income attributable to non-controlling interest in subsidiaries related to the midstream segment.
| Exploration and Production |  |  |  |  |  |  |  | Consolidated Company
|  | Midstream |  | Corporate |  | Eliminations |
Year Ended December 31, 2015 |  |  |  |  |  |  |  |  |
Oil and natural gas revenues | $ | 277,844 |  |  | $ | 496 |  |  | $ | — |  |  | $ | — |  |  | $ | 278,340 |
Midstream services revenues | — |  |  | 11,485 |  |  | — |  |  | (9,621 | ) |  | 1,864 |
Realized gain on derivatives | 77,094 |  |  | — |  |  | — |  |  | — |  |  | 77,094 |
Unrealized loss on derivatives | (39,265 | ) |  | — |  |  | — |  |  | — |  |  | (39,265 | )
Expenses (1) | 1,078,534 |  |  | 5,178 |  |  | 50,604 |  |  | (9,621 | ) |  | 1,124,695 |
Operating (loss) income (2) | $ | (762,861 | ) |  | $ | 6,803 |  |  | $ | (50,604 | ) |  | $ | — |  |  | $ | (806,662 | )
Total Assets | $ | 1,000,075 |  |  | $ | 75,980 |  |  | $ | 64,806 |  |  | $ | — |  |  | $ | 1,140,861 |
Capital Expenditures (3) | $ | 622,642 |  |  | $ | 75,009 |  |  | $ | 786 |  |  | $ | — |  |  | $ | 698,437 |
_____________________ (1) Expenses include depreciation, depletion and amortization expenses of $176.7 million, $1.6 million and $0.5 million for the exploration and production, midstream and corporate segments, respectively, and full-cost ceiling impairment expense of $801.2 million for the exploration and production segment. (2) Includes $0.3 million in net income attributable to non-controlling interest in subsidiaries related to the midstream segment. (3) In October 2015, the Company sold the Wolf Processing Plant to EnLink and the cost basis of $31.0 million for those assets was removed from the total midstream assets.
| Exploration and Production |  |  |  |  |  |  |  | Consolidated Company
|  | Midstream |  | Corporate |  | Eliminations |
Year Ended December 31, 2014 |  |  |  |  |  |  |  |  |
Oil and natural gas revenues | $ | 366,191 |  |  | $ | 1,521 |  |  | $ | — |  |  | $ | — |  |  | $ | 367,712 |
Midstream services revenues | — |  |  | 4,929 |  |  | — |  |  | (3,716 | ) |  | 1,213 |
Realized gain on derivatives | 5,022 |  |  | — |  |  | — |  |  | — |  |  | 5,022 |
Unrealized loss on derivatives | 58,302 |  |  | — |  |  | — |  |  | — |  |  | 58,302 |
Expenses (1) | 220,374 |  |  | 2,703 |  |  | 32,557 |  |  | (3,716 | ) |  | 251,918 |
Operating (loss) income (2) | $ | 209,141 |  |  | $ | 3,747 |  |  | $ | (32,557 | ) |  | $ | — |  |  | $ | 180,331 |
Total Assets | $ | 1,388,261 |  |  | $ | 35,100 |  |  | $ | 11,129 |  |  | $ | — |  |  | $ | 1,434,490 |
Capital Expenditures | $ | 597,351 |  |  | $ | 12,504 |  |  | $ | 517 |  |  | $ | — |  |  | $ | 610,372 |
_____________________ (1) Expenses include depreciation, depletion and amortization expenses of $133.1 million, $1.2 million and $0.4 million for the exploration and production, midstream and corporate segments, respectively. (2) Includes $17,000 in net loss attributable to non-controlling interest in subsidiaries related to the midstream segment.

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8736-108599 + Details
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