 Propane is stored in two large artificial rock caverns with a combined capacity of 250 000 m3.Ethane, normal and iso butane, naphtha and stabilised condensate are held in tanks.First gas reached the complex on 25 July 1985 through a pipeline from the Statfjord field in the North Sea, and the first dry gas was piped on to Emden in Germany on 15 October that year.