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Equity Investments (Tables) | 12 Months Ended
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Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of investments accounted for by the equity method | Summarized results of operations:
| December 31,
| 2018 |  | 2017 |  | 2016
| (In thousands)
Gross revenue | $ | 1,729,778 |  |  | $ | 755,374 |  |  | $ | 287,733 |
Net income (loss) | $ | 253,451 |  |  | $ | (37,102 | ) |  | $ | (65,070 | )
Summarized balance sheet information:
| December 31,
| 2018 |  | 2017
| (In thousands)
Current assets | $ | 471,733 |  |  | $ | 415,032 |
Noncurrent assets | $ | 1,302,488 |  |  | $ | 1,542,090 |
Current liabilities | $ | 239,975 |  |  | $ | 261,086 |
Noncurrent liabilities | $ | 94,575 |  |  | $ | 148,839 |
Investments accounted for by the equity method consist of the following as of December 31, 2018 and 2017:
|  |  | Carrying Value |  | (Income) loss from equity method investments
| Approximate Ownership % |  | December 31, |  | For the Year Ended December 31,
|  | 2018 |  | 2017 |  | 2018 |  | 2017 |  | 2016
|  |  | (In thousands)
Investment in Tatex Thailand II, LLC | 23.5 | % |  | $ | — |  |  | $ | — |  |  | $ | (241 | ) |  | $ | (549 | ) |  | $ | (412 | )
Investment in Tatex Thailand III, LLC | — | % |  | — |  |  | — |  |  | — |  |  | (183 | ) |  | — |
Investment in Grizzly Oil Sands ULC | 24.9999 | % |  | 44,259 |  |  | 57,641 |  |  | 510 |  |  | 2,189 |  |  | 25,150 |
Investment in Timber Wolf Terminals LLC(3) | — | % |  | — |  |  | 983 |  |  | 536 |  |  | 8 |  |  | 8 |
Investment in Windsor Midstream LLC | 22.5 | % |  | 39 |  |  | 30 |  |  | (9 | ) |  | 25,233 |  |  | (13,618 | )
Investment in Stingray Cementing LLC(1) | — | % |  | — |  |  | — |  |  | — |  |  | 205 |  |  | 263 |
Investment in Blackhawk Midstream LLC(4) | — | % |  | — |  |  | — |  |  | (38 | ) |  | — |  |  | — |
Investment in Stingray Energy Services LLC(1) | — | % |  | — |  |  | — |  |  | — |  |  | 282 |  |  | 1,044 |
Investment in Sturgeon Acquisitions LLC(1) | — | % |  | — |  |  | — |  |  |  |  |  | (71 | ) |  | 993 |
Investment in Mammoth Energy Services, Inc.(1) | 21.9 | % |  | 191,823 |  |  | 165,715 |  |  | (49,969 | ) |  | (11,288 | ) |  | 24,037 |
Investment in Strike Force Midstream LLC(2) | — | % |  | — |  |  | 77,743 |  |  | (693 | ) |  | 1,954 |  |  | (89 | )
|  |  | $ | 236,121 |  |  | $ | 302,112 |  |  | $ | (49,904 | ) |  | $ | 17,780 |  |  | $ | 37,376 |
(1) | On June 5, 2017, Mammoth Energy Services, Inc. ("Mammoth Energy") acquired Stingray Cementing LLC, Stingray Energy Services LLC and Sturgeon Acquisitions LLC. See below under Mammoth Energy Partners LP/Mammoth Energy Services, Inc. for information regarding these transactions.
(2) | On May 1, 2018, the Company sold its 25% interest in Strike Force Midstream to EQT Midstream Partners, LP. See below under under Strike Force Midstream LLC for information regarding this transaction.
(3) | On June 5, 2018, the Company received its final distribution from Timber Wolf Terminals LLC ("Timber Wolf"). See below under Timber Wolf Terminals LLC for information regarding this distribution.
(4) | On December 31, 2018, the Company received its final distribution from Blackhawk Midstream LLC ("Blackhawk"). See below under Blackhawk Midstream LLC for information regarding this distribution.

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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