(7) Other Current Liabilities
Other current liabilities were as follows: | | | | | | | | | | | | (in millions) | June 30, 2021 | | December 31, 2020 | Accrued Renewable Fuel Standards (“RFS”) obligation | $ | 485 | | | $ | 214 | | Accrued taxes other than income taxes | 41 | | | 32 | | Personnel accruals | 31 | | | 23 | | Accrued derivatives | 26 | | | 17 | | Accrued interest | 23 | | | 25 | | Share-based compensation | 16 | | | 4 | | Deferred revenue | 15 | | | 31 | | Operating lease liabilities | 12 | | | 14 | | Accrued income taxes | 10 | | | — | | Current portion of long-term debt and finance lease obligations | 6 | | | 8 | | Other accrued expenses and liabilities | 15 | | | 9 | | Total other current liabilities | $ | 680 | | | $ | 377 | |
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