5 Largest Oil Fields in the World

3. Ahvaz Field

Total Oil Reserves Based on Cumulative Past Production and Future Production Potential: 65 billion barrels

Country: Iran

Ahvaz Field is Iran’s largest oil field with 65 billion barrels of total oil reserves when including cumulative past production. Like the Gachsaran Field, Ahvaz Field has been in operation for a while considering it first went into production in 1954. In 2016, the oil field produced 750,000 barrels per day.