National Iranian Oil Company
National Iranian Oil Company (NIOC) is Iran’s wholly state-owned upstream oil and gas company, overseen by the Ministry of Petroleum. From Tehran, it manages exploration, production, crude marketing and major crude export terminals, including Kharg Island. It is a core counterparty in Iran-related energy supply chains, with sanctions exposure decisive for commercial and investment decisions.
Operations & footprint
Products and services
National Iranian Oil Company manages Iran's upstream oil and gas system, including exploration, drilling, field development, crude oil and natural gas production, reservoir management, petroleum engineering, research and development, oil and gas export coordination, upstream subsidiaries, offshore and onshore production companies, technical service companies, crude oil supply, condensate-related activity, and strategic petroleum-sector project development.
Operations and assets
NIOC’s operating network includes upstream exploration and production businesses, crude marketing operations, Kharg Island Oil Terminal, and export terminals at Lavan Island, Siri Island, Bahregansar and Jask. Kharg Island handles about 90% of Iranian crude oil exports.
Geographic footprint
Headquartered in Tehran, Iran. Its oil and gas operations and export infrastructure serve domestic production areas and Persian Gulf export routes.
Ownership & group structure
Ownership
Wholly owned by the Government of the Islamic Republic of Iran and overseen by the Ministry of Petroleum.
Parent company
Ministry of Petroleum of Iran
Subsidiaries and group companies
National Iranian South Oil Company (NISOC); Iranian Offshore Oil Company (IOOC); Iranian Central Oil Fields Company (ICOFC); Pars Oil and Gas Company (POGC); Khazar Exploration and Production Company (KEPCO); Petroleum Engineering and Development Company (PEDEC); National Iranian Drilling Company (NIDC); Naftiran Intertrade Company (NICO).
Commercial and investment relevance
NIOC is relevant for investors assessing Iran's upstream oil and gas reserves, production capacity, crude export potential, field redevelopment needs, drilling demand, engineering services, petroleum-sector procurement, and sanctions-sensitive energy transactions. It can support analysis of how oil revenue, condensate production, gas capture, EOR projects, offshore fields, contractor access, and export restrictions affect the wider economy. Due diligence should treat NIOC as a high-compliance-risk state counterparty and verify current sanctions status, ministry control, subsidiary structure, field ownership, procurement rules, project pipeline, export channels, tanker and terminal links, payment routes, and restrictions affecting finance, equipment, drilling technology, shipping, insurance, or crude-oil trade. The company is a pivotal counterparty for upstream development, drilling, field services, crude marketing, tanker logistics and oil-and-gas technology connected to Iran. Its export-terminal network is particularly material to crude supply-chain analysis.
Constraints, risk & compliance
Key risks and constraints
Cross-border transactions linked to NIOC face severe restrictions on banking, shipping, insurance, trade and technology transfers. Sanctions-related constraints can limit execution, settlement and access to international service providers.
Sanctions and compliance considerations
NIOC is listed on the U.S. Treasury Specially Designated Nationals list under E.O. 13846, E.O. 13224, E.O. 13382 and E.O. 13599. Dealings involving the company present substantial U.S. sanctions and secondary-sanctions exposure, including for financial institutions, ship operators and counterparties.
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Frequently asked questions
Direct answers to the questions most likely to arise when reviewing this profile.
What does National Iranian Oil Company do?
NIOC manages Iran’s upstream oil and gas activities, including exploration, production, crude marketing and export-terminal operations.
Who owns National Iranian Oil Company?
NIOC is wholly owned by the Government of the Islamic Republic of Iran and operates under the oversight of the Ministry of Petroleum.
Why is Kharg Island important to NIOC?
Kharg Island Oil Terminal is NIOC’s principal crude export hub and handles about 90% of Iranian crude oil exports.
Is NIOC subject to sanctions?
Yes. NIOC is listed on the U.S. Treasury SDN List, and transactions involving the company carry substantial sanctions and secondary-sanctions exposure.