The Gachsaran oil field is an

Iranian Iranian may refer to: * Iran, a sovereign state * Iranian peoples, the speakers of the Iranian languages. The term Iranic peoples is also used for this term to distinguish the pan ethnic term from Iranian, used for the people of Iran * Iranian lan ...

oil field A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presence ...

located in Kohgiluyeh and Boyer-Ahmad Province and is around

Gachsaran Dogonbadan ( fa, دوگنبدان, ; also Romanized as Do Gonbadān, Dow Gonbadān, and Du Gunbadān; also known as Gachsaran ( fa, گچساران), also Romanized as Gachsārān) is a city and the capital of Gachsaran County, Kohgiluyeh and Boyer ...

city or

Dogonbadan Dogonbadan ( fa, دوگنبدان, ; also Romanized as Do Gonbadān, Dow Gonbadān, and Du Gunbadān; also known as Gachsaran ( fa, گچساران), also Romanized as Gachsārān) is a city and the capital of Gachsaran County, Kohgiluyeh and Boyer ...

. It was discovered in 1928 and developed by

Anglo-Persian Oil Company The Anglo-Persian Oil Company (APOC) was a British company founded in 1909 following the discovery of a large oil field in Masjed Soleiman, Persia (Iran). The British government purchased 51% of the company in 1914, gaining a controlling number ...

. It began production of

Crude oil Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crude ...

in 1930. The total

proven reserves Proven reserves (also called measured reserves, 1P, and reserves) is a measure of fossil fuel energy reserves, such as oil reserves, natural gas reserves, and coal reserves. It is defined as the " antity of energy sources estimated with reasonabl ...

of the Gachsaran field are around 52.9 billion barrels (9394×10⁶tonnes), and production is centered on . The field is owned by

National Iranian Oil Company The National Iranian Oil Company (NIOC; fa, شرکت ملّی نفت ایران, Sherkat-e Melli-ye Naft-e Īrān) is a government-owned national oil and natural gas producer and distributor under the direction of the Ministry of Petroleum of Ir ...

(NIOC) and operated by

National Iranian South Oil Company The National Iranian South Oil Company (NISOC) ( fa, شرکت ملی مناطق نفت‌خیز جنوب ایران, ''Shirkat-e Mily-e Minatâq-e Nuftxiz-e Jinvâb-e Iran'') is a government-owned corporation under the direction of the Ministry o ...

(NISOC).

References

Oil fields of Iran {{oilfield-stub