National Iranian Oil Company National Iranian Oil Company (NIOC) is in charge of oil and gas exploration and production, processing and oil transportation.
National Iranian South Oil Company (NISOC) is an important subsidiary of NIOC. NISOC is producing about 83% percent of all crude oil and 16% percent of natural gas produced in Iran. National Iranian Oil Company subsidiaries: • National Iranian South Oilfields Company (NISOC) • Iranian Central Oilfields Company (ICOFC) • Pars Oil and Gas company • Petroleum Engineering and Development Co. (PEDEC) • Iranian Offshore Oil Company
National Iranian Gas Company National Iranian Gas Company (NIGC) manages gathering, treatment, processing, transmission, distribution, and exports of gas and gas liquids. The huge
reserves of natural gas put Iran in the second place, in terms of the natural gas reserve quantity, among other countries, only next to the
Russian Federation, with an estimate of proven reserve quantity close to 23 bcm.
National Iranian Oil Refining and Distribution Company National Iranian Oil Refining and Distribution Company (NIORDC) handles oil refining and transportation, with some overlap to NIOC. There are
eight refineries with a potential capacity of and one refinery complex in the country with a total refining capacity of over (in
Tehran,
Tabriz,
Isfahan,
Abadan,
Kermanshah,
Shiraz,
Bandar Abbas,
Arak and
Lavan Island) and a storage capacity of 8 milliard litre. Abundance of basic material, like natural gas, in the country provide favorable conditions for development and expansion of petrochemical plants.
Production companies •
National Iranian South Oilfields Company (NISOC) • Karoun oil and gas exploitation company • Maroun Oil and Gas Company • Masjed Soleyman Oil and Gas Company • Gachsaran Oil and Gas Company • Aghajari exploitation Company • Iranian Central Oilfields Company (ICOFC) • West Gas & Oil exploitation Company • East Oil and Gas exploitation Company • Southern Zagros Oil and Gas Company •
Iranian Offshore Oil Company • Pars Oil and Gas company • Arvandan Oil & Gas Co.
Technical Services Companies •
National Iranian Drilling Company • Petroleum Engineering and Development Co. • Iranian Oil Terminals Company • Pars Special Economic Zone •
Naftiran Intertrade Company (Nico) • Iran fuel conservation optimization company ==Revenues from crude oil==