BTU Content of Common Energy Units 1 barrel (42 gallons) of crude oil = 5,800,000 Btu
1 gallon of gasoline = 124,000 Btu
1 gallon of diesel fuel = 139,000 Btu
1 gallon of heating oil = 139,000 Btu
1 barrel of residual fuel oil = 6,287,000 Btu
1 cubic foot of natural gas = 1,031 Btu
1 gallon of propane = 91,000 Btu
1 short ton of coal = 20,754,000 Btu
1 kilowatt-hour of electricity = 3,412 Btu