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Prepaid and Other Current Assets (Tables)
 6 Months Ended
Jun. 30, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepaid and Other Current Assets Prepaid and other current assets at June 30, 2022 and December 31, 2021 consisted of the following (in thousands):
June 30, 2022December 31, 2021
Advances to suppliers for crude purchases$12,513 $— 
Collateral posted with broker for derivative instruments (1)72,162 6,053 
Prepaid insurance4,911 14,110 
Derivative assets33,864 1,260 
Deferred inventory financing charges— 4,073 
Other6,788 3,029 
Total$130,238 $28,525 
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(1)Our cash margin that is required as collateral deposits on our commodity derivatives cannot be offset against the fair value of open contracts except in the event of default. Please read Note 10—Derivatives for further information.