Crude oil is a naturally occurring, unrefined petroleum product composed of hydrocarbon deposits and other organic materials.
Diesel fuel in general is any liquid fuel used in diesel engines, whose fuel ignition takes place, without any spark.
Octane is a gasoline additive that is needed for the proper functioning of modern engines. Octane sources have taken many forms.
Fuel oil, also called furnace oil, fuel consisting mainly of residues from crude-oil distillation. It is used primarily for steam boilers.
Naphtha is a flammable liquid hydrocarbon mixture. Mixtures labelled naphtha have been produced from natural gas condensates.
Bitumen is a thick, black crude oil. Bitumen is a low-grade of crude oil which is composed of complex, heavy hydrocarbons.
Petcoke is a byproduct created when bitumen found in tar sands, like those in Alberta, Canada, is refined into crude oil.
LPG is a fossil fuel closely linked to oil. About two thirds of the LPG people use is extracted directly from the Earth.
LNG is natural gas that has been cooled down to liquid form for ease and safety of non-pressurized storage or transport.
Urea is a nitrogenous compound containing a carbonyl group attached to two amine groups with osmotic diuretic activity.
Sulfur is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent, and nonmetallic.
Mazut Fuel oil is a heavy, low quality fuel that is used in power plants and similar applications. In the United States.