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SUMMARY OF SIGNIFICANT EVENTS AND ACCOUNTING POLICIES - Related Party Transactions (Details) - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Jul. 27, 2018 | Nov. 16, 2017 | Dec. 31, 2018
Chairman, Chief Executive Officer and President |  |  |
Related Party Transactions |  |  |
Amount paid for charter of aircraft |  |  | $ 0.9
Chairman, Chief Executive Officer and President | Accounts payable and accrued liabilities |  |  |
Related Party Transactions |  |  |
Amount payable |  |  | 0.2
Ares Management LLC | Halcon Resources Corporation |  |  |
Related Party Transactions |  |  |
Ownership interest (as a percent) | 10.00% | 10.00% |
Salt Creek Midstream, LLC |  |  |
Related Party Transactions |  |  |
Term |  | 15 years |
Amount received |  |  | 0.4
SCM Crude, LLC |  |  |
Related Party Transactions |  |  |
Term | 15 years |  |
Amount received |  |  | 13.0
Receivable from related party |  |  | $ 10.9

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