Barrel of Crude Oil

Q: How many gallons of gasoline does a barrel of crude oil make?

A: A barrel is equal to 42 gallons of crude oil. Crude oil goes through a distillation process at a refinery to make gasoline and other products. According to the American Petroleum Institute, one barrel of crude oil can make about 19.4 gallons of gasoline, 9.7 gallons of fuel oil, and smaller quantities of other products.