Four types of fossil fuels include the traditional fossil fuels of oil, coal and natural gas, and a third propriety fuel developed by British Petroleum known as Orimulsion. Fossil fuels are found within the Earth and are used to produce energy.
Oil is one of the most used fossil fuels. It is found within the Earth and drilled to extract for uses such as heating, gasoline and combustion fuel. Coal is a black substance that has been used for thousands of years. It was used during prehistoric times to heat caves and rose in popularity during the 1800s as an energy source. Natural gas is a more modern fuel that is composed of methane gas. Orimulsion is a bitumen and water-based fuel intended for industrial uses.