Crude Oil or Raw petroleum is a naturally occurring substance found in certain stone developments in the earth. To extricate the most extreme incentive from rough, it should be refined into oil based commodities. The best-known about these is gas, or petroleum. Others incorporate condensed oil gas (LPG), naphtha, lamp oil, gas oil and fuel oil. In the unrefined petroleum industry, there are oil names, (for example, Brent Light Crude Oil and Bonny Light) and there are oil sorts, (for example, light, overwhelming, sweet and acrid). Light oil has a low thickness consistency, while substantial oil is of higher thickness. Sweet oil has less sulfur, and harsh oil has over the top sulfur. The world market favors light, sweet unrefined petroleum, to a great extent since it requires less refinement and generation time before going to showcase.