| Gachsaran oil field | |
| Country: | Iran |
| Region: | Kohgiluyeh and Boyer-Ahmad |
| Location Map: | Iran |
| Location Map Text: | Location of the Gachsaran oil field within Iran |
| Offonshore: | onshore |
| Coordinates: | 30.35°N 98°W |
| Relief: | yes |
| Operator: | NISOC |
| Partners: | NIOC |
| Discovery: | 1928 |
| Start Production: | 1930 |
| Oil Production Bbl/D: | 560000 |
| Est Oil Bbl: | 52900 |
| Recover Oil Bbl: | 23700 |
| Formations: | Miocene Cretaceous |
The Gachsaran oil field is an Iranian oil field located in Kohgiluyeh and Boyer-Ahmad Province and is around Gachsaran city or Dogonbadan.[1] 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 (9394×106tonnes), and production is centered on 560000oilbbl/d.[2] The field is owned by National Iranian Oil Company (NIOC) and operated by National Iranian South Oil Company (NISOC).[3]