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EQUITY INVESTMENTS (Tables) | 6 Months Ended
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Jun. 30, 2021
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 June 30, 2021 and December 31, 2020:
|  |  | Carrying value |  | Loss from equity method investments
|  |  | Successor |  |  | Predecessor |  | Successor |  |  | Predecessor |  | Successor |  |  | Predecessor
|  |  | June 30, 2021 |  |  | December 31, 2020 |  | Period from May 18, 2021 through June 30, 2021 |  |  | Period from April 1, 2021 through May 17, 2021 |  | Three months ended June 30, 2020 |  | Period from May 18, 2021 through June 30, 2021 |  |  | Period from January 1, 2021 through May 17, 2021 |  | Six months ended June 30, 2020
Investment in Grizzly Oil Sands ULC | 24.5 | % |  | $ | — |  |  |  | $ | 24,816 |  |  | $ | — |  |  |  | $ | — |  |  | $ | (45) |  |  | $ | — |  |  |  | $ | (342) |  |  | $ | (188) |
Investment in Mammoth Energy | — | % |  | — |  |  |  | — |  |  | — |  |  |  | — |  |  | — |  |  | — |  |  |  | — |  |  | (10,646) |
|  |  | $ | — |  |  |  | $ | 24,816 |  |  | $ | — |  |  |  | $ | — |  |  | $ | (45) |  |  | $ | — |  |  |  | $ | (342) |  |  | $ | (10,834) |
Schedule of Equity Investments - Balance Sheet | The tables below summarize financial information for the Company’s equity investments as of June 30, 2021 and December 31, 2020. Summarized balance sheet information:
| June 30, 2021 |  | December 31, 2020
| (In thousands)
Current assets | $ | 462,478 |  |  | $ | 483,303 |
Noncurrent assets | $ | 1,079,557 |  |  | $ | 1,092,495 |
Current liabilities | $ | 125,359 |  |  | $ | 132,978 |
Noncurrent liabilities | $ | 124,628 |  |  | $ | 148,240 |
Schedule of Equity Investments - Income Statement | Summarized results of operations:
| Three months ended June 30, |  | Six months ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
| (In thousands)
Gross revenue | $ | 66,805 |  |  | $ | 60,109 |  |  | 151,855 |  |  | 157,492 |
Net loss | $ | (13,606) |  |  | $ | (14,922) |  |  | (22,533) |  |  | (99,953) |

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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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