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Business Segment Information (Tables) | 6 Months Ended
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Jun. 30, 2016
Segment Reporting [Abstract] |
Summarized Financial Information of Segments | The following table summarizes financial information for the Company’s three business segments for the periods presented:
| Exploration and Production |  | Well Services |  | Midstream Services |  | Eliminations |  | Consolidated
| (In thousands)
Three months ended June 30, 2016: |
Revenues from non-affiliates | $ | 159,337 |  |  | $ | 12,834 |  |  | $ | 6,909 |  |  | $ | — |  |  | $ | 179,080 |
Inter-segment revenues | — |  |  | 8,301 |  |  | 22,026 |  |  | (30,327 | ) |  | — |
Total revenues | 159,337 |  |  | 21,135 |  |  | 28,935 |  |  | (30,327 | ) |  | 179,080 |
Operating income (loss) | (44,748 | ) |  | (2,173 | ) |  | 18,056 |  |  | 651 |  |  | (28,214 | )
Other income (expense) | (114,230 | ) |  | 31 |  |  | (16 | ) |  | — |  |  | (114,215 | )
Income (loss) before income taxes | $ | (158,978 | ) |  | $ | (2,142 | ) |  | $ | 18,040 |  |  | $ | 651 |  |  | $ | (142,429 | )
Three months ended June 30, 2015: |  |  |  |  |  |  |  |  |
Revenues from non-affiliates | $ | 214,110 |  |  | $ | 9,219 |  |  | $ | 6,717 |  |  | $ | — |  |  | $ | 230,046 |
Inter-segment revenues | — |  |  | 49,469 |  |  | 21,944 |  |  | (71,413 | ) |  | — |
Total revenues | 214,110 |  |  | 58,688 |  |  | 28,661 |  |  | (71,413 | ) |  | 230,046 |
Operating income (loss) | (22,529 | ) |  | 9,008 |  |  | 15,947 |  |  | (9,863 | ) |  | (7,437 | )
Other income (expense) | (76,635 | ) |  | 22 |  |  | (25 | ) |  | — |  |  | (76,638 | )
Income (loss) before income taxes | $ | (99,164 | ) |  | $ | 9,030 |  |  | $ | 15,922 |  |  | $ | (9,863 | ) |  | $ | (84,075 | )
Six months ended June 30, 2016: |  |  |  |  |  |  |  |  |
Revenues from non-affiliates | $ | 276,652 |  |  | $ | 18,818 |  |  | $ | 13,893 |  |  | $ | — |  |  | $ | 309,363 |
Inter-segment revenues | — |  |  | 33,205 |  |  | 44,860 |  |  | (78,065 | ) |  | — |
Total revenues | 276,652 |  |  | 52,023 |  |  | 58,753 |  |  | (78,065 | ) |  | 309,363 |
Operating income (loss) | (133,625 | ) |  | 1,848 |  |  | 33,200 |  |  | (4,852 | ) |  | (103,429 | )
Other income (expense) | (131,119 | ) |  | 37 |  |  | (2 | ) |  | — |  |  | (131,084 | )
Income (loss) before income taxes | $ | (264,744 | ) |  | $ | 1,885 |  |  | $ | 33,198 |  |  | $ | (4,852 | ) |  | $ | (234,513 | )
Six months ended June 30, 2015: |  |  |  |  |  |  |  |  |
Revenues from non-affiliates | $ | 387,969 |  |  | $ | 11,927 |  |  | $ | 10,537 |  |  | $ | — |  |  | $ | 410,433 |
Inter-segment revenues | — |  |  | 97,666 |  |  | 35,766 |  |  | (133,432 | ) |  | — |
Total revenues | 387,969 |  |  | 109,593 |  |  | 46,303 |  |  | (133,432 | ) |  | 410,433 |
Operating income (loss) | (64,776 | ) |  | 18,618 |  |  | 25,255 |  |  | (20,169 | ) |  | (41,072 | )
Other income (expense) | (68,396 | ) |  | 20 |  |  | (44 | ) |  | — |  |  | (68,420 | )
Income (loss) before income taxes | $ | (133,172 | ) |  | $ | 18,638 |  |  | $ | 25,211 |  |  | $ | (20,169 | ) |  | $ | (109,492 | )
At June 30, 2016: |
Property, plant and equipment, net | $ | 4,951,972 |  |  | $ | 53,926 |  |  | $ | 351,116 |  |  | $ | (170,280 | ) |  | $ | 5,186,734 |
Total assets(1) | 5,191,725 |  |  | 57,482 |  |  | 356,612 |  |  | (170,280 | ) |  | 5,435,539 |
At December 31, 2015: |  |  |  |  |  |  |  |  |
Property, plant and equipment, net | $ | 5,057,311 |  |  | $ | 61,402 |  |  | $ | 264,956 |  |  | $ | (165,427 | ) |  | $ | 5,218,242 |
Total assets(1)(2) | 5,478,439 |  |  | 66,952 |  |  | 269,411 |  |  | (165,427 | ) |  | 5,649,375 |
___________________
(1) | Intercompany receivables (payables) for all segments were reclassified to capital contributions from (distributions to) parent and not included in total assets.
(2) | At December 31, 2015, total assets included assets held for sale of $26.7 million in the exploration and production segment related to the assets sold as of April 1, 2016 (see Note 7 – Divestiture).

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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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