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Equity Investments | 3 Months Ended
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Mar. 31, 2018
Equity Method Investments and Joint Ventures [Abstract] |
Equity Investments | EQUITY INVESTMENTS Investments accounted for by the equity method consist of the following as of March 31, 2018 and December 31, 2017:
|  |  | Carrying value |  | (Income) loss from equity method investments
| Approximate ownership % |  | March 31, 2018 |  | December 31, 2017 |  | Three months ended March 31,
|  |  |  | 2018 |  | 2017
|  |  | (In thousands)
Investment in Tatex Thailand II, LLC | 23.5 | % |  | $ | — |  |  | $ | — |  |  | $ | (41 | ) |  | $ | (243 | )
Investment in Grizzly Oil Sands ULC | 24.9999 | % |  | 53,564 |  |  | 57,641 |  |  | 330 |  |  | 365 |
Investment in Timber Wolf Terminals LLC | 50.0 | % |  | 980 |  |  | 983 |  |  | 2 |  |  | 4 |
Investment in Windsor Midstream LLC | 22.5 | % |  | 30 |  |  | 30 |  |  | — |  |  | (311 | )
Investment in Stingray Cementing LLC(1) | — | % |  | — |  |  | — |  |  | — |  |  | 128 |
Investment in Blackhawk Midstream LLC | 48.5 | % |  | — |  |  | — |  |  | — |  |  | — |
Investment in Stingray Energy Services LLC(1) | — | % |  | — |  |  | — |  |  | — |  |  | 197 |
Investment in Sturgeon Acquisitions LLC(1) | — | % |  | — |  |  | — |  |  | — |  |  | 68 |
Investment in Mammoth Energy Services, Inc.(1) | 25.1 | % |  | 179,770 |  |  | 165,715 |  |  | (13,470 | ) |  | 2,158 |
Investment in Strike Force Midstream LLC | 25.0 | % |  | 77,350 |  |  | 77,743 |  |  | (357 | ) |  | 2,541 |
|  |  | $ | 311,694 |  |  | $ | 302,112 |  |  | $ | (13,536 | ) |  | $ | 4,907 |
(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.
The tables below summarize financial information for the Company’s equity investments as of March 31, 2018 and December 31, 2017. Summarized balance sheet information:
| March 31, 2018 |  | December 31, 2017
| (In thousands)
Current assets | $ | 395,679 |  |  | $ | 415,032 |
Noncurrent assets | $ | 2,109,829 |  |  | $ | 1,542,090 |
Current liabilities | $ | 285,521 |  |  | $ | 261,086 |
Noncurrent liabilities | $ | 87,259 |  |  | $ | 148,839 |
Summarized results of operations:
| Three months ended March 31,
| 2018 |  | 2017
| (In thousands)
Gross revenue | $ | 511,133 |  |  | $ | 94,478 |
Net income (loss) | $ | 64,452 |  |  | $ | (25,339 | )
Tatex Thailand II, LLC The Company has an indirect ownership interest in Tatex Thailand II, LLC (“Tatex II”). Tatex II holds an 8.5% interest in APICO, LLC (“APICO”), an international oil and gas exploration company. APICO has a reserve base located in Southeast Asia through its ownership of concessions covering approximately 180,000 acres which includes the Phu Horm Field. The Company received an immaterial amount and $0.2 million in distributions from Tatex II during the three months ended March 31, 2018 and 2017, respectively. Tatex Thailand III, LLC The Company has an ownership interest in Tatex Thailand III, LLC (“Tatex III”). Tatex III previously owned a concession covering approximately 245,000 acres in Southeast Asia. As of December 31, 2014, the Company reviewed its investment in Tatex III and, together with Tatex III, made the decision to allow the concession to expire in January 2015. As such, the Company fully impaired the asset as of December 31, 2014. In December 2017, Tatex III was dissolved and the Company received a final distribution of $0.2 million. Grizzly Oil Sands ULC The Company, through its wholly owned subsidiary Grizzly Holdings Inc. (“Grizzly Holdings”), owns an interest in Grizzly Oil Sands ULC (“Grizzly”), a Canadian unlimited liability company. The remaining interest in Grizzly is owned by Grizzly Oil Sands Inc. (“Oil Sands”). As of March 31, 2018, Grizzly had approximately 830,000 acres under lease in the Athabasca, Peace River and Cold Lake oil sands regions of Alberta, Canada. Grizzly has high-graded three oil sands projects to various stages of development. Grizzly commenced commercial production from its Algar Lake Phase I steam-assisted gravity drainage ("SAGD") oil sand project during the second quarter of 2014 and has regulatory approval for up to 11,300 barrels per day of bitumen production. Algar Lake production peaked at 2,200 barrels per day during the ramp-up phase of the SAGD facility, however, in April 2015, Grizzly made the decision to suspend operations at its Algar Lake facility due to the commodity price drop and its effect on project economics. Grizzly continues to monitor market conditions as it assesses start up plans for the facility. The Company reviewed its investment in Grizzly for impairment based on FASB ASC 323 at March 31, 2018 and 2017 and determined no impairment was required. If commodity prices decline in the future however, impairment of the investment in Grizzly may be necessary. During the three months ended March 31, 2018, Gulfport paid $1.6 million in cash calls. Grizzly’s functional currency is the Canadian dollar. The Company’s investment in Grizzly was decreased by $5.3 million as a result of a foreign currency translation loss and increased by $1.3 million as a result of a foreign currency translation gain for the three months ended March 31, 2018 and 2017, respectively. Timber Wolf Terminals LLC During 2012, the Company invested in Timber Wolf Terminals LLC (“Timber Wolf”). Timber Wolf was formed to operate a crude/condensate terminal and a sand transloading facility in Ohio. During the three months ended March 31, 2018 and 2017, the Company paid no cash calls to Timber Wolf. Windsor Midstream LLC At March 31, 2018, the Company held a 22.5% interest in Windsor Midstream LLC (“Midstream”), an entity controlled and managed by an unrelated third party. Midstream previously owned a 28.4% interest in Coronado Midstream LLC (“Coronado”), a gas processing plant in West Texas. In March 2015, Coronado was sold to EnLink Midstream Partners, LP (“EnLink”). As a result of the sale of Coronado to EnLink, Midstream received common units of EnLink, which were subsequently sold by Midstream. The Company received $0.2 million in distributions from Midstream during the three months ended March 31, 2017 and no distributions during the same period in 2018. Stingray Cementing LLC During 2012, the Company invested in Stingray Cementing LLC (“Stingray Cementing”). Stingray Cementing provides well cementing services. The (income) loss from equity method investments presented in the table above reflects any intercompany profit eliminations. On June 5, 2017, the Company contributed all of its membership interests in Stingray Cementing to Mammoth Energy. See below under Mammoth Energy Partners LP/Mammoth Energy Services, Inc. for information regarding this transaction. Blackhawk Midstream LLC During 2012, the Company invested in Blackhawk Midstream LLC (“Blackhawk”). Blackhawk coordinated gathering, compression, processing and marketing activities for the Company in connection with the development of its Utica Shale acreage. Blackhawk does not have any current activities. Stingray Energy Services LLC During 2013, the Company invested in Stingray Energy Services LLC (“Stingray Energy”). Stingray Energy provides rental tools for land-based oil and natural gas drilling, completion and workover activities as well as the transfer of fresh water to wellsites. The (income) loss from equity method investments presented in the table above reflects any intercompany profit eliminations. On June 5, 2017, the Company contributed all of its membership interests in Stingray Energy to Mammoth Energy. See below under Mammoth Energy Partners LP/Mammoth Energy Services, Inc. for information regarding this transaction. Sturgeon Acquisitions LLC During 2014, the Company invested $20.7 million and received an ownership interest of 25% in Sturgeon Acquisitions LLC (“Sturgeon”). Sturgeon owns and operates sand mines that produce hydraulic fracturing grade sand. On June 5, 2017, the Company contributed all of its membership interests in Sturgeon to Mammoth Energy. See below under Mammoth Energy Partners LP/Mammoth Energy Services, Inc. for information regarding this transaction. Mammoth Energy Partners LP/Mammoth Energy Services, Inc. In the fourth quarter of 2014, the Company contributed its investments in four entities to Mammoth Energy Partners LP (“Mammoth”) for a 30.5% interest in this entity. In October 2016, Mammoth converted from a limited partnership into a limited liability company named Mammoth Energy Partners LLC (“Mammoth LLC”) and the Company and the other members of Mammoth LLC contributed their interests in Mammoth LLC to Mammoth Energy. Following the contribution, Mammoth Energy completed its initial public offering of shares of its common stock. On June 5, 2017, the Company contributed all of its membership interests in Sturgeon (which owns Taylor Frac, LLC, Taylor Real Estate Investments, LLC and South River Road, LLC), Stingray Energy and Stingray Cementing to Mammoth Energy in exchange for approximately 2.0 million shares of Mammoth Energy common stock (the "June 2017 Transactions"). As of March 31, 2018, the Company held approximately 25.1% of Mammoth Energy’s outstanding common stock. The Company accounted for the transactions as a sale of financial assets under FASB ASC 860. The Company valued the shares of Mammoth Energy common stock it received in the June 2017 Transactions at $18.50 per share, which was the closing price of Mammoth Energy common stock on June 5, 2017. During the second quarter of 2017, the Company recognized a gain of $12.5 million from the June 2017 Transactions. The Company’s investment in Mammoth Energy was decreased by a $0.2 million foreign currency loss and increased by a $0.1 million foreign currency gain resulting from Mammoth Energy’s foreign subsidiary for the three months ended March 31, 2018 and 2017, respectively. The (income) loss from equity method investments presented in the table above reflects any intercompany profit eliminations. Strike Force Midstream LLC In February 2016, the Company, through its wholly owned subsidiary Gulfport Midstream Holdings, LLC (“Midstream Holdings”), entered into an agreement with Rice Midstream Holdings LLC (“Rice”), a subsidiary of Rice Energy Inc., to develop natural gas gathering assets in eastern Belmont County and Monroe County, Ohio through Strike Force Midstream LLC ("Strike Force"). In 2017, Rice was acquired by EQT Corporation ("EQT"). The Company owns a 25% interest in Strike Force, and EQT acts as operator and owns the remaining 75% interest in Strike Force. Construction of the gathering assets, which is ongoing, provides gathering services for wells operated by Gulfport and other operators and connectivity of existing dry gas gathering systems. During the three months ended March 31, 2018, Gulfport received distributions of $0.8 million from Strike Force. During the three months ended March 31, 2017, Gulfport paid $10.0 million in cash calls to Strike Force and received distributions of $0.4 million from Strike Force. The Company has elected to report its proportionate share of Strike Force’s earnings on a one-quarter lag as permitted under FASB ASC 323. The (income) loss from equity method investments presented in the table above reflects any intercompany profit eliminations.

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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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