Oil by Shivkiran Anil Nambiar! for Mr. Tony BurtonIntroduction to petroleumPetroleum is a natural substance found beneath the earth's surface. Oil consists of decomposed organic substances and hydrocarbons of different atomic weights. !Petroleum is the name commonly used to introduce both unprocessed crude oil and petroleum products consisting of refined crude oil. !As a fossil fuel, oil constantly forms beneath our feet in the fossil layers of the crust when large quantities of dead animals and plants are buried beneath the rock and are subjected to the intense heat of the layer's magma of the coat and immense pressure. from the top of the crust over long periods of time.Oil Extraction! ! !Oil is extracted from the fossil layer of the crust mainly through oil drilling. It is then refined and separated, most easily by boiling, and then made into a large number of consumer products ranging from gasoline (known as gasoline primarily in the United States and Canada) to petrochemicals. used....