Oil refinery

An oil refinery or petroleum refinery is an industrial process plant where crude oil is transformed and refined into useful products such as petroleum, gasoline, diesel, asphalt, paraffin, wax, heating oil, kerosene, liquefied petroleum gas (LPG), jet fuel and fuel oils.

Some modern petroleum refineries process as much as 800,000 to 900,000 barrels (127,000 to 143,000 cubic meters) of crude oil per day.