Essar Oil will double the capacity of its Vadinar oil refinery in Gujarat to 20 million tons from its current capacity of 10.5 million tons per year. The company has already implemented a project to expand capacity to 18 million tons, but has decided to increase the capacity to 20 million tons instead. Phase-I expansion is 72% complete with completion scheduled for March 2011. The new refinery capacity will be achieved by revamping six refinery units including the FCCU (Fluid Catalytic Cracking Unit), DHDS (Diesel Hydro Desulphurisation) Unit, SWSU (Sour Water Stripping Unit), DHDT (Diesel Hydrotreater), VGO-HDT (Vacuum Gas Oil Hydrotreater) and DCU (Delayed Coker Unit). The USD 381 million project is scheduled for completion by September 2012.