what is Crude oil
Crude oil is a liquid found naturally in rock, containing mostly complex hydrocarbons, with some additional organic material. It is the major fuel used on the planet, and is used in the production of many synthetic materials like plastics as well.rude oil is the liquid form of petroleum, natural gas is the gaseous form of petroleum, and oil shale and sands are the semi-solid forms of petroleum. Both petroleum and coal come from decayed organic matter that was compressed underneath layers of sedimentary rock deep below the Earthâs surface.