Oil is one of the basic human needs, even in nearly all parts of the world's petroleum is used as an energy source or for the needs of daily life - days. So far people only know the oil in the form so without knowing the origin of oil from where and how to get through so can be directly used. Generally obtained by drilling wells on land and on the beach, to a depth of hundreds of meters even until kilogram meters above sea level. the first oil found still in their raw form.
The oil obtained is collected in tankers and then flowed through pipes into the tank station or oil refinery. Crude oil is a black viscous liquid and smelled dreadful. This oil can not be used as fuel or for other purposes, but must go through processing in advance.
