Iranian government energy company overseen by Iran's Ministry of Petroleum; has provided support to the Islamic Revolutionary Guard Corps (IRGC); has awarded contracts to Khatam Al-Anbia, a construction and development wing of the IRGC.

Responsible for Iran's crude oil and gas exploration and production operations; carries out research and development projects leading to development of oil fields, technology transfer, and preservation of oil and gas reservoirs.

Subsidiaries include:

National Iranian South Oil Company
Karoun Oil & Gas Production Company
Maroun Oil & Gas Production Company
Masdjed Soleyman Oil & Gas Production Company
Gachsaaraan Oil & Gas Production Company
Aaqaajari Oil & Gas Production Company
Iran Drilling Services Company
Oil Transportation Services and Logistics Company (OTSLC)
South Engineering Services & Turbine Industrial Equipment Company
Iranian Central Oil Fields Company
West Oil & Gas Production Company
East Oil & Gas Production Company
South Zagros Oil & Gas Production Company
Iraninan Offshore Oil Company
Pars Oil & Gas Company
Arvandan Oil & Gas Company
Khazar Exploration and Production Company (KEPCO)
National Iranian Drilling Company
Petroleum Engineering and Development Company
Kalanaft Company
Iranian Oil Terminals Company
Pars Special Economic Energy Zone
North Drilling Company
Naftiran Intertrade Company
Research Institute of Petroleum Ministry
Petroleum Industry Health Organization
National Iranian Gas Export Company
Iranian Fuel Conservation Organization
Pension, Saving & Welfare Funds

Company officials include Bijan Zanganeh (board chairman) and Roknoddin Javadi (CEO); established in 1951.

Sanctions

Designated on March 14, 2016 by the U.S. Department of the Treasury, freezing its assets under U.S. jurisdiction, pursuant to Executive Order 13599, which targets the property of the Government of Iran; added on November 8, 2012 to the Specially Designated Nationals (SDN) list maintained by the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC); removed from the SDN list in January 2016 as part of the Joint Comprehensive Plan of Action; listed by the European Union on October 16, 2012 as an entity involved in nuclear or ballistic missile activities or providing support to the government of Iran; removed from the E.U. list in January 2016 as part of the Joint Comprehensive Plan of Action.

Listed by the British government in 2015 as an entity of potential concern for WMD-related procurement, and has had export licenses both granted and denied by that government.