Beginning in 1993, fuel ethanol blended into finished motor gasoline and oxygenate production from merchant MTBE plants are also included. Stock changes are calculated using new basic stock levels. Bulk terminal and pipeline stocks of oxygenates were added beginning in January 1993.
Crude oil includes lease condensate.
Stocks are totals as of end of period. Geographic coverage is the 50 States and the District of Columbia. Totals may not equal sum of components due to independent rounding.