Group Sonangol is a parastatal that oversees petroleum and natural gas production in Angola. The group consists of Sonangol E.P. (Sociedade Nacional de Combustíveis de Angola, E.P.) and its many subsidiaries. The subsidiaries generally have Sonangol E.P. as a primary client, along with other corporate, commercial and individual clients. Angola is estimated to have over 5 billion barrels of offshore and coastal petroleum reserves, and new discoveries are outpacing consumption by a 5 to 1 ratio.