Oil
Oil is a liquid rock of natural origin, a mineral oil composed of a multitude of organic compounds, mainly hydrocarbons, trapped in particular geological formations. The exploitation of this source of fossil energy and hydrocarbons is one of the pillars of the contemporary industrial economy, since oil supplies almost all liquid fuels - oil, diesel, kerosene, gasoline, LPG - while that naphtha produced by refining is the basis of petrochemicals, from which a very large number of usual materials - plastics, synthetic textiles, synthetic rubbers, detergents, adhesives, fertilizers, cosmetics, etc. - are produced. - and that the heaviest fractions lead to bitumens, paraffins and lubricants. Oil in its deposit is frequently associated with light fractions which spontaneously separate from the liquid at atmospheric pressure, as well as various impurities such as carbon dioxide, hydrogen sulphide, formation water and metallic traces. Pumping bridge in Lubbock, Texas, USA.