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Segment Reporting (Notes) | 12 Months Ended
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Dec. 31, 2016
Segment Reporting [Abstract] |
Segment Reporting | SEGMENT INFORMATION The Company operates in two business segments: (i) exploration and production and (ii) midstream. The exploration and production segment is engaged in the acquisition, exploration and development of oil and natural gas properties and is currently focused primarily on the oil and liquids-rich portion of the Wolfcamp and Bone Spring plays in the Delaware Basin in Southeast New Mexico and West Texas. The Company also operates in the Eagle Ford shale play in South Texas and the Haynesville shale and Cotton Valley plays in Northwest Louisiana and East Texas. During the third quarter of 2016, our midstream business became a reportable segment under U.S. GAAP. The midstream segment conducts midstream operations in support of the Company’s exploration, development and production operations and provides natural gas processing, natural gas, oil and salt water gathering services and salt water disposal services to third parties on a limited basis. The following tables present selected financial information for the periods presented regarding the Company’s operating segments on a stand-alone basis, expenses that are not allocated to a segment and the consolidation and elimination entries necessary to arrive at the financial information for the Company on a consolidated basis (in thousands). On a consolidated basis, midstream services revenues consist primarily of those revenues from midstream operations related to third parties, including working interest owners in the Company’s operated wells. All midstream services revenues associated with Company-owned production are eliminated in consolidation. In evaluating the operating results of the exploration and production and midstream segments, the Company does not allocate certain expenses to the individual segments, including general and administrative expenses.
| 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 The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8981-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8971-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8595-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8984-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8538-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8864-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599 Reference 14: 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 + Details
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