Skip to content

Iranian Offshore Oil Company

Request correction

Corporate brand

Unclaimed

An Iranian state-owned offshore oil producer operating oilfields, platforms and related facilities in the Persian Gulf.

Last updated August 31, 2026

AI crawler reads

No AI crawler has read this profile yet.

Overview

The Iranian Offshore Oil Company (IOOC) is an Iranian oil producer and a subsidiary of the National Iranian Oil Company. It is an independent legal entity headquartered in Tehran and operates in southern Iran, with activity concentrated in the Persian Gulf and adjoining coastal and island areas. Its principal operating locations include Bushehr Province, Kharg Island, Sirri Island and Lavan Island, while its wider operating area also encompasses fields near Kish and Qeshm. IOOC was established after the Iranian Revolution through the consolidation of offshore operating companies whose partnership arrangements were abolished following the revolution. The company consequently became a central Iranian vehicle for managing offshore oil production and associated infrastructure in the Persian Gulf. Its responsibilities cover the development and operation of offshore and onshore oil facilities, production systems, storage infrastructure and related energy assets. The company divides its Persian Gulf activities into northern and southern operating zones. The northern zone includes oilfields around Kharg Island and fields near the Iranian port of Bahregan. The southern zone includes areas around Sirri, Lavan, Kish and Qeshm islands. This geographic organization reflects the distribution of Iran's offshore oil resources and the logistical importance of the islands and coastal terminals used to handle crude oil. IOOC's facilities were heavily damaged during the Iran–Iraq War, affecting both offshore installations and associated onshore infrastructure. The company continued to represent an important part of Iran's hydrocarbon system despite the operational and physical consequences of the conflict. Public reference material describes production capacity of more than 640,000 barrels per day, although the cited material does not establish a single current production figure or distinguish capacity from actual output. Beyond conventional oil production, IOOC has participated in large-scale development and energy-infrastructure projects. In 2012, it signed a reported $6.6 billion contract with Iran's Power Projects Management Company, known as MAPNA, for development of the Forouz B gas field in the Persian Gulf and electricity generation using the resulting natural gas. In 2015, the company acquired a very large floating storage unit named Persian Gulf, designed to hold approximately 2.2 million barrels of crude oil. The vessel had been built by Samsung in South Korea and was completed after construction that began in 2008. IOOC's strategic role is therefore tied to Iran's control of offshore petroleum resources, the maintenance of Persian Gulf production and storage systems, and the development of associated gas and power projects. It is primarily an operating company rather than a consumer-facing product brand. Its activities are domestic and state-directed, although its offshore assets and crude-handling infrastructure are connected to the international oil market. The available reference material does not provide a current executive roster, official website, stock-market listing, or a confirmed present-day production total.

History

The Iranian Offshore Oil Company emerged from the restructuring of Iran's petroleum industry after the Iranian Revolution. Partnership contracts involving the companies previously operating in the relevant offshore areas were abolished after the revolution. Approximately one year later, those companies were combined to form IOOC, creating a unified Iranian organization for managing offshore oil activities in the Persian Gulf. The company's establishment placed a broad collection of offshore fields and supporting facilities under a single operating structure. IOOC became an independent legal entity within the National Iranian Oil Company system and was based in Tehran, while its production activities were located primarily in southern Iran. Its operational geography included major offshore areas and associated facilities around Kharg, Sirri and Lavan islands, as well as fields and installations near Bushehr Province and other Persian Gulf islands. IOOC's operations are organized into northern and southern zones. The northern zone covers fields around Kharg Island and areas near Bahregan port. Kharg is a significant location in Iran's crude-oil handling network, while Bahregan provides an important coastal base for northern Persian Gulf operations. The southern zone covers areas around Sirri, Lavan, Kish and Qeshm. This division allows the company to manage geographically dispersed offshore fields and the infrastructure needed to move, store and process their production. During the Iran–Iraq War, IOOC suffered extensive damage to offshore and onshore facilities. The conflict affected the physical assets required for production and transport, making restoration and continued operation a major part of the company's subsequent history. The available reference does not provide a detailed reconstruction timeline, but identifies the war as a significant disruption to IOOC's infrastructure. IOOC has also undertaken projects extending beyond routine field operations. In 2012, it entered into a reported $6.6 billion contract with MAPNA for development of the Forouz B gas field and the generation of electricity from the field's natural gas. The agreement reflected an effort to link offshore gas development with domestic power generation. In early 2015, IOOC acquired the Persian Gulf floating storage unit, reported to have capacity for about 2.2 million barrels of crude oil. Samsung began constructing the unit in 2008 and completed it at a reported cost of approximately $300 million. Reference material describes IOOC as having production capacity above 640,000 barrels per day. That figure is a stated capacity rather than a verified current output measure. The company remains associated with Iran's offshore petroleum production system, including crude oil operations, gas-field development, storage and related infrastructure in the Persian Gulf. No reliable public material supplied for this entry identifies current executives, a standalone public listing, or a confirmed official website.

  • 2015

    Acquisition of Persian Gulf floating storage unit

    [1]

    IOOC acquired the Persian Gulf floating storage unit, reported to have crude-oil storage capacity of approximately 2.2 million barrels.

  • 2012

    Forouz B development and power-generation contract

    [1]

    IOOC signed a reported $6.6 billion contract with MAPNA for development of the Forouz B gas field and electricity generation using the produced natural gas.

  • Formation after the Iranian Revolution

    [1]

    Following the abolition of earlier partnership contracts, several offshore operating companies were consolidated to establish the Iranian Offshore Oil Company approximately one year after the Iranian Revolution.

Products and positioning

A state-owned Iranian offshore oil operating company focused on Persian Gulf exploration, production, field development, storage and associated energy infrastructure.

  • Hydrocarbon production

    Crude oil

    Crude oil is IOOC's principal output. The company operates offshore fields in the northern and southern Persian Gulf zones, with associated coastal, island and offshore infrastructure used to produce, move and store crude. Reference material places the company's production capacity above 640,000 barrels per day, but does not provide a current verified production level.

  • Gas-field development · 2012

    Natural gas

    IOOC also participates in natural-gas development, including the Forouz B gas-field project in the Persian Gulf. The 2012 agreement linked field development with electricity generation from the produced gas, indicating an integrated use of associated energy infrastructure rather than a standalone consumer gas product.

  • Crude-oil storage · 2015

    Persian Gulf floating storage unit

    The Persian Gulf is a very large floating storage unit acquired by IOOC in 2015. It was reported to have capacity for approximately 2.2 million barrels of crude oil. Samsung of South Korea began construction in 2008 and completed the unit before its acquisition by IOOC.

Brand decisions

  • 2015

    Acquire Persian Gulf floating storage unitStrategy

    Background

    IOOC required large-scale crude storage capacity for its offshore petroleum operations.

    Action taken

    IOOC acquired the Persian Gulf floating storage unit, reported to hold approximately 2.2 million barrels of crude oil.

    Aftermath

    The acquisition added substantial floating storage capacity to the company's offshore logistics system. The supplied reference does not provide subsequent utilization or financial results.

    Reported construction cost. Approximately $300 million (Construction completed before the 2015 acquisition)

  • 2012

    Approve Forouz B gas-field and electricity projectOther

    Background

    IOOC sought to develop the Forouz B gas field in the Persian Gulf and use the resulting natural gas for electricity generation.

    Action taken

    The company signed a reported $6.6 billion contract with MAPNA, Iran's Power Projects Management Company.

    Aftermath

    The agreement connected offshore gas-field development with power generation. The supplied reference does not document the project's completion or later performance.

    Reported contract value. $6.6 billion (2012)

Sources1 sources

Cite this profile: Cite the canonical profile. /brand-wiki/iranian-offshore-oil-company · Editorial policy · How profiles are compiled