One 42-gallon barrel of oil creates 19.4 gallons of gasoline. The rest (over half) is used to make things like: Although the major use of petroleum is as a fuel, (gasoline, jet fuel, heating oil), and petroleum and natural gas are often used to generate electricity, there are many other uses. Products made from crude oil After crude oil is removed from the ground, it is sent to a refinery where different parts of the crude oil are separated into useable petroleum products. These petroleum products include gasoline, distillates such as diesel fuel and heating oil, jet fuel, petrochemical feedstocks, waxes, lubricating oils, and asphalt. Here is everything that can be made from just one barrel of oil: Enough gasoline to drive a medium-sized car over 450km (280 miles). Enough distillate fuel to drive a large truck for almost 65km (40 miles). If jet fuel fraction is included, that same truck can run nearly 80km (50 miles).