In petroleum geology, Source rocks are important as they are rocks from which Oil and gas have been generated or are capable of being generated. This makes them vital in a working petroleum system as subsurface source rock mapping method make it possible to identify likely zones of petroleum occurrences in sedimentary basins and shale gas. Quality of source rocks are determined by factors such as total organic carbon present in the source rocks, proportions of individual kerogens and prevalence of long-chain hydrocarbon.Thus, for oil and gas companies to maximize exploration and production projects they must be proficient in identifying and searching for source rocks.