India has one of the strongest refining networks in Asia, with more than 23 operating oil refineries spread across the country. These refineries convert crude oil into petrol, diesel, LPG, aviation fuel, and petrochemical products that power homes, transport, and industries.

India’s total refining capacity now exceeds 250 MMTPA, with major facilities located along the west and east coasts, especially in Gujarat, Maharashtra, Kerala, Odisha, and Assam.

🏭 Major Refinery Operators in India

• Indian Oil Corporation (IOCL)
• Bharat Petroleum (BPCL)
• Hindustan Petroleum (HPCL)
• Reliance Industries
• Nayara Energy
• Mangalore Refinery & Petrochemicals (MRPL)
• Numaligarh Refinery Limited (NRL)
• Chennai Petroleum Corporation (CPCL)
• ONGC

🔥 Key Oil Refineries in India

Reliance Jamnagar Refinery – Gujarat
The world’s largest refinery complex, handling massive export volumes and advanced petrochemical processing.

Vadinar Refinery – Gujarat
Operated by Nayara Energy, this refinery plays a major role in western India’s fuel supply.

Paradip Refinery – Odisha
A modern IOCL refinery supplying eastern India with BS-VI fuels.

Kochi Refinery – Kerala
BPCL’s flagship southern refinery with integrated petrochemical facilities.

Mangalore Refinery – Karnataka
Operated by MRPL (ONGC), supporting coastal fuel logistics.

Visakhapatnam Refinery – Andhra Pradesh
HPCL’s major east-coast refinery serves Andhra, Telangana, and Odisha.

Manali Refinery – Tamil Nadu
CPCL’s Chennai refinery supplies southern markets.

Numaligarh Refinery – Assam
A vital refinery for northeast India, currently expanding capacity.

Digboi Refinery – Assam
India’s oldest refinery, commissioned in 1901.

For a full picture of India’s energy ecosystem apart from oil refineries india  also check out our articles on  list of LNG terminals in India, covering locations, operators, and capacities.

📊 Complete List of Operating Oil Refineries

📈 Why Oil Refineries Matter

• Create thousands of direct & indirect jobs
• Support transport, power, and manufacturing sectors
• Boost exports and foreign revenue
• Drive infrastructure growth
• Improve national energy security

Read more to know what LNG is and how liquefied natural gas is transported, stored, and supplied across India.

🧠 Final Thoughts

India’s refinery network forms the backbone of its energy system. From the massive Jamnagar complex to historic Digboi, these refineries fuel economic growth, industrial expansion, and everyday life. With multiple new projects under development, India continues strengthening its position as a global refining hub.