Reservoir oil and gas engineering impart a qualification to geology in being one of the extraordinary underground sciences of the oil industry. The working apparatuses of the reservoir engineering are subsurface geology, the fundamental laws of material science, applied mathematics, science administering the conduct of fluid and vapour periods of crude oil, natural gas, and water in the reservoir rock. They work with advanced equipment, such as computer Modeling and imaging programs, reserves of oil and natural gas where located.