The Deleni gas field is a natural gas field located in Băgaciu, Mureș County. It was discovered in 1912 and developed by and Romgaz. It began production in 1915 and produces natural gas and condensates. The total proven reserves of the Deleni gas field are around 3 e12cuft, and production is slated to be around 178 e6cuft/d in 2010. Deleni is the richest methane deposit in Romania, containing many gas horizons down to a depth of 700 m. It provides fuel for the municipalities of Târnăveni and Târgu Mureș, as well as the capital city, Bucharest. Deleni is the largest gas field in Romania.