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Gachsaran Oil Field
The Gachsaran Oil Field, located in Kohgiluyeh and Boyer-Ahmad province, is one of Iran's largest and most productive crude oil deposits. Discovered in 1928, commercial production did not begin until 1940. The field covers an area of approximately 400 square kilometers and is characterized by its geological complexity within the Asmari formation. Gachsaran plays a fundamental role in the Iranian economy, supplying a significant portion of national crude oil production destined for both domestic consumption and export via the terminal on Kharg Island. The facility includes numerous well sites, collection centers, and desalination plants for processing the extracted oil. Due to its long production history, modern pressure maintenance and gas injection techniques are employed at Gachsaran to keep production rates stable. The field is also an important source of natural gas, produced as associated gas. As a strategic asset, the Gachsaran field is at the center of national energy policy aimed at maximizing hydrocarbon recovery.
- Location: Iran
- Nearby: Bandar Ganaveh (Mal-e Qa'ed) (62 km)
Best time to visit & climate
The most pleasant time to visit is May, Sep, Oct.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 5 | 6 | 10 | 15 | 22 | 27 | 30 | 29 | 25 | 19 | 11 | 7 |
| Rain mm | 74 | 51 | 62 | 40 | 8 | 3 | 2 | 4 | 2 | 11 | 69 | 83 |
📋 Practical info
Geography
Facts
- Gachsaran is the second-largest oil field in southwestern Iran after Ahvaz.
- Estimated recoverable reserves are over 50 billion barrels.
- The field produces heavy crude oil, which is important for refineries worldwide.
- Gachsaran was one of the first fields developed by the Anglo-Persian Oil Company.
- Large quantities of natural gas are reinjected into the field for pressure maintenance.
- Pipelines connect Gachsaran directly to refineries in Shiraz and Abadan.
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Notable places around
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Sights nearby
Frequently asked questions
What is the Gachsaran oil field?
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Gachsaran Oil Field: where is it located?
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Gachsaran Oil Field: why is it worth visiting?




