Largest Oil Field in Gujarat: Bombay High

The Bombay High offshore field, located ~176 km west of Mumbai in the Arabian Sea, is the largest oil field in Gujarat and in all of India.

• Discovered: 1974 by ONGC.
• Production started: 1976.
• Peak output: ~340,000 barrels/day (1980s); current ~200,000 bpd.
• Reserves: Estimated 2.5+ billion barrels recoverable.
• Operated by ONGC; also includes satellite fields (Neelam, Heera, Bassein).

Onshore, the Ankleshwar field (Bharuch district) is Gujarat's largest and India's second-largest overall.