Petroleum Chemistry is made up of a blend of various hydrocarbons. The most productive hydrocarbons found in the science of oil are alkanes, these are additionally now and then knowing as expanded or straight hydrocarbons. A huge level of the staying concoction compound is comprised of sweet-smelling hydrocarbons and cycloalkanes. Furthermore, oil science contains a few more intricate hydrocarbons, for example, asphaltenes. Each land area and henceforth oil field will create a crude oil with an alternate blend of particles relying on the general level of every hydrocarbon it contains, this specifically influences the colouration and thickness of the oil science. The essential type of hydrocarbons in the science of oil are the alkanes, which are additionally frequently named paraffin. These are named as soaked hydrocarbons and they show either fanned or straight particle chains.