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EQUITY INVESTMENTS (Tables) | 9 Months Ended
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Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Equity Method Investments | Investments accounted for by the equity method consist of the following as of September 30, 2020 and December 31, 2019:
|  |  | Carrying value |  | (Loss) income from equity method investments
| Approximate ownership % |  | September 30, 2020 |  | December 31, 2019 |  | Three months ended September 30, |  | Nine months ended September 30,
|  |  |  | 2020 |  | 2019 |  | 2020 |  | 2019
|  |  | (In thousands)
Investment in Grizzly Oil Sands ULC | 24.6 | % |  | $ | 16,521 |  |  | $ | 21,000 |  |  | $ | (153) |  |  | $ | (41) |  |  | $ | (341) |  |  | $ | (380) |
Investment in Mammoth Energy Services, Inc. | 21.5 | % |  | — |  |  | 11,005 |  |  | — |  |  | (43,041) |  |  | (10,646) |  |  | (166,096) |
Investment in Windsor Midstream LLC | 22.5 | % |  | 39 |  |  | 39 |  |  | — |  |  | — |  |  |  |  | — |
Investment in Tatex Thailand II, LLC | 23.5 | % |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,085 |
|  |  | $ | 16,560 |  |  | $ | 32,044 |  |  | $ | (153) |  |  | $ | (43,082) |  |  | $ | (10,987) |  |  | $ | (164,391) |
Schedule of Equity Investments - Balance Sheet | The tables below summarize financial information for the Company’s equity investments as of September 30, 2020 and December 31, 2019. Summarized balance sheet information:
| September 30, 2020 |  | December 31, 2019
| (In thousands)
Current assets | $ | 463,853 |  |  | $ | 421,326 |
Noncurrent assets | $ | 1,086,150 |  |  | $ | 1,260,075 |
Current liabilities | $ | 115,976 |  |  | $ | 132,569 |
Noncurrent liabilities | $ | 161,183 |  |  | $ | 163,241 |
Schedule of Equity Investments - Income Statement | Summarized results of operations:
| Three months ended September 30, |  | Nine months ended September 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
| (In thousands)
Gross revenue | $ | 70,534 |  |  | $ | 113,417 |  |  | $ | 228,026 |  |  | $ | 557,375 |
Net (loss) income | $ | 2,808 |  |  | $ | (35,730) |  |  | $ | (97,145) |  |  | $ | (15,046) |

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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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