The Iranian Central Oil Fields Company (ICOFC, Persian: شرکت نفت مناطق مرکزی ایران) established in 1999, is one of the five major production companies of the National Iranian Oil Company. It is responsible for production of gas and oil from 76 reservoirs, comprising 45 gas fields and 31 oilfields; among them, 14 gas fields and 13 oilfields are currently in operation,[2] and by the end of the 20 year outlook plan it will have reached 89 fields in 19 provinces.[3] The Company, at its establishment, was assigned to develop and to produce oil and gas from onshore fields through utilization of all available technology and know-how.