Petroleum is a valuable resource as it is one of the most used fuels commercially and industrially. Petroleum is a result of the chemical and biochemical action of natural elements on the organic remains of dead plants and animals. Dead and decaying organic waste gets trapped in between soil where bacteria decompose them slowly, forming pockets of oil and natural gas. Petroleum occurs most extensively in sedimentary rocks as dead and decaying matter gets easily trapped between the layers of sedimentation. Nowadays petroleum occurs mainly in pockets under the earth's surface where large water bodies were once located. The mineral undergoes extraction using highly powered drilling machines.