The National Iranian Gas Company (NIGC) was established in 1965 as one of the four principal companies affiliated to the Ministry of Petroleum of the Islamic Republic of Iran with 25,000 million Rials initial capital.
The Ministry of Petroleum (MOP) (Persian: وزارت نفت, romanized: Vezârat-e Naft) manages all aspects of the Iranian oil industry, including the discovery, extraction, production, distribution, and importation and exportation of crude oil and petrochemical products. The Ministry has been sanctioned by the United States Department of State since 2020.
The South Pars/North Dome field is a natural-gas condensate field located in the Persian Gulf. It is by far the world's largest natural gas field, with ownership of the field shared between Iran and Qatar. According to the International Energy Agency (IEA), the field holds an estimated 1,800 trillion cubic feet of in-situ natural gas and some 50 billion barrels of natural gas condensates. On the list of natural gas fields it has almost as much recoverable reserves as all the other fields combined. It has significant geostrategic influence.
Marun Field is an oil field in the Khuzestan province of Iran and is the second-largest oil field in Iran. The field was discovered in 1963, and owned by state-owned National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The petroleum industry of Ghana is regulated by the state-owned Ghana National Petroleum Corporation (GNPC) and administered by the state-owned Ghana Oil Company (GOIL).
Aghajari Gas Injection Project is the world’s biggest enhanced oil recovery) project to be inaugurated in Iran in late 2008.
Iran is an energy superpower and the petroleum industry in Iran plays an important part in it. In 2004, Iran produced 5.1 percent of the world's total crude oil, which generated revenues of US$25 billion to US$30 billion and was the country's primary source of foreign currency. At 2006 levels of production, oil proceeds represented about 18.7% of gross domestic product (GDP). However, the importance of the hydrocarbon sector to Iran's economy has been far greater. The oil and gas industry has been the engine of economic growth, directly affecting public development projects, the government's annual budget, and most foreign exchange sources.
Ahvaz Field is a super-giant oil field located in Ahvaz, Khuzestan, Iran. It was discovered in 1953, developed by Anglo-Persian Oil Company and began production in 1954. Ahvaz field is one of the richest oil fields in the world with an estimated proven reserves around 65.5 billion barrels, and production is centered on 750,000 barrels per day (119,000 m3/d). The field is owned by National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Iranian Central Oil Fields Company is one of the five major production companies of the National Iranian Oil Company. Established in 1999, 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, and by the end of the 20 year outlook plan it will have reached 89 fields in 19 provinces. The company was originally assigned to develop and produce oil and gas from onshore fields through utilization of all available technology and know-how. As of 2015, ICOFC is the largest natural gas producer in Iran.
The Gachsaran oil field is an Iranian oil field located in Kohgiluyeh and Boyer-Ahmad Province and is around Gachsaran city or Dogonbadan. It was discovered in 1928 and developed by Anglo-Persian Oil Company. It began production of crude oil in 1930. The total proven reserves of the Gachsaran field are around 52.9 billion barrels (9394×106 tonnes), and production is centered on 560,000 barrels per day (89,000 m3/d). The field is owned by National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The National Iranian South Oilfields Company (NISOC) is a government-owned corporation under the direction of the Ministry of Petroleum of Iran, and operates as a subsidiary of National Iranian Oil Company.
The Kupal oil field is an oil field located in Khuzestan Province, at 60 km east of Ahvaz City. It was discovered in 1965 and the production was started after installing production facilities in 1970. The total proven reserves of the Kupal oil field are around 5,6 billion barrels. The field has 60 km in length 1.5 km in width and includes two Asmari and Bangestan reservoirs. So far, 55 wells were drilled in this field, 39 wells are active, which produce totally 93,000 barrels per day (14,800 m3/d). The field is owned by state-owned National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Shadegan oil field is an Iranian oil field located in Khuzestan Province, in the south west of Ahvaz City. It was discovered in 1968 and the production was started in 1988. The field has 23 km in length 6 km in width and includes two reservoirs. Shadegan field is currently with 20 active oil wells and crude oil production is about 69,000 barrels per day (11,000 m3/d). The field is owned by National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Rag Sefid oil field is an oil field located in Khuzestan Province, approximately 6 km in nearest distance from the Persian Gulf, southwest Iran. It was discovered in 1964 and developed by National Iranian Oil Company and began production in 1966. The total proven reserves of the Rag Sefid oil field are around 14,5 billion barrels, and production is centered on 180,000 barrels per day (29,000 m3/d). The field is owned by state-owned National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Bibi Hakimeh oil field is an oil field located in Bibi Hakimeh, Kohgiluyeh and Boyer-Ahmad Province, Iran. The field lies 210 kilometres southeast of Ahvaz. It was discovered in 1961, and it has produced oil since 1963. In 2018, it produced 120,000 barrels per day (19,000 m3/d) of oil. The field is owned by state-owned National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Karanj oil field is an Iranian oil field located 120 kilometres (75 mi) east of the Ahvaz City, in Khuzestan Province. It was discovered in 1963 and the production was started after installing production facilities in 1964. Oil production of Karanj field is about 200,000 barrels per day (32,000 m3/d). The field has a 650-metre thick oil column with an API gravity of 33.9 deg. Its oil reserves have been estimated at 11.2 bn barrels, with gas at about 3.5 TCF. A gas injection project at Karanj was completed in 1995. The field is owned by state-owned National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Mansouri oil field is an oil field located in southwest Iran and 45 km southeast of Ahvaz city. It was discovered in 1963 and the production was started after installing production facilities in 1974. Oil production of Mansouri field is about 110,000 barrels per day (17,000 m3/d). Its oil reserves have been estimated at 3.3 bn barrels. The field is owned by state-owned National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Abteymour oil field is an Iranian oil field located in Khuzestan province, in 25 km from west of the Ahvaz City. It was discovered in 1967 and production began in 1991. The field produces about 48,000 barrels per day (7,600 m3/d). Its oil reserves have been estimated at 12.2 bn barrel. The field is owned by state-owned National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).
The Masjed Soleyman oil field is an oil field located in Masjed Soleyman, Khuzestan Province, Iran and in the north of Ahvaz City. It was the first oil field discovered in Middle East. The field is a mature super-giant, which produces primarily from the prolific Oligocene Asmari horizons, a formation which underpins Iranian crude oil production. The National Iranian South Oil Company operates the field, as well as a number of other fields in the surrounding regions. Oil production of MasjedSoleyman field is about 5,000 barrels per day (790 m3/d). The field is estimated to contain 6.5 billion barrels of oil. So far 367 wells were drilled in the field, of which only 16 are currently operational. The field is owned by National Iranian Oil Company (NIOC).
