The development stages:In production - under development/2010-01.Carabobo 2 is an onshore block in the eastern sector of the Orinoco extra-heavy oil belt, and also the final one to be awarded, will be developed by PDVSA (60%) and Russia's state oil company Rosneft (40%), who are in charge of the Carabobo 2 Norte and Carabobo 4 Oeste areas. Rosneft is to invest US$16bn in the project. The block is expected to produce 25Bt a year. The Carabobo oil block is part of the Orinoco oil belt, one of the largest hydrocarbons reserves in the world. The Orinoco belt extends 55,314 square kilometers and is divided into four areas: Boyacá, Junín, Ayacucho and Carabobo. The Carabobo block is split into three zones: Carabobo 1, Carabobo 2, and Carabobo 3.