South Sudan aims to raise oil production to 230,000 bbl/d within a month. Oil production used to average 350,000 bbl/d before the interruption of oil supplies in January 2012 due to a dispute with Khartoum over how much it should pay to export oil through Sudan. Resuming oil production and exports is vital for the country, which depended on oil for 98% of government revenues before the shutdown. South Sudan aims to restart its Nile state oilfields by March 2013 (180,000 to 200,000 bbl/d, i.e. 70% to 80% of their potential) and its Unity state fields by May 2013 (about 30,000 bbl/d, 1/3 of their potential). Unity state production is expected to be raised to about 100,000 bbl/d, up from around 70,000 bbl/d before the shutdown, by adding new wells and introducing new technologies for existing wells to improve recovery. After the resumption of oil production in these two zones, South Sudan will take a final decision about Block B, a major block controlled by Total.