The way we organize our group mirrors the diversity of our activities. BP is divided into four main business segments: Exploration and Production; Refining and Marketing; Petrochemicals; and Gas, Power and Renewables. Our business segments operate across four regions. Their activities are supported by a number of key corporate functions. We operate in 100 countries with well-established businesses in Europe, North and South America, Australasia and Africa. Our main activities are the exploration and production of crude oil and natural gas; refining, marketing, supply and transportation; and the manufacture and marketing of petrochemicals.