CEDIGAZ, the International Center for Natural Gas Information, has released today the updated version of its Worlwide Underground Gas Storage (UGS) database. According to Cedigaz, worldwide working gas capacity stood at 399 bcm at January 1, 2014, a 5% growth over the previous year. Salt caverns represented 8% of working gas capacities worldwide and 26% of daily withdrawal capacity, they were the fastest growing segment of the market, with a 10% growth rate in 2013 and a 33% share of the planned projects backlog in terms of capacity. In difficult times for storage operators, European capacities grew by almost 3% (+13% for salt caverns).