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India’s robust network of oil refineries plays a pivotal role in the nation’s energy security and economic growth. From the historic fields of Assam to the colossal complexes in Gujarat, these industrial powerhouses process crude oil into a variety of essential petroleum products, fueling transportation, industries, and households across the country.
Andhra Pradesh
- Tatipaka Refinery
- Operating Company: Oil and Natural Gas Corporation (ONGC)
- Capacity: 0.066 MMTPA (Million Metric Tonnes Per Annum)
- Noteworthy: A small-capacity refinery, the Tatipaka facility is crucial for processing the crude oil produced from the Krishna-Godavari basin.
- Visakhapatnam Refinery
- Operating Company: Hindustan Petroleum Corporation Limited (HPCL)
- Capacity: 8.3 MMTPA
- Noteworthy: A major refinery on the east coast, the Visakhapatnam Refinery is undergoing a significant modernization and expansion project to further enhance its production capabilities.
Assam
- Bongaigaon Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 2.35 MMTPA
- Noteworthy: Now amalgamated with Indian Oil, this refinery is a key supplier of petroleum products to the northeastern states.
- Digboi Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 0.65 MMTPA
- Noteworthy: Holding the distinction of being India’s oldest operating oil refinery, Digboi has been in operation since 1901 and is a site of significant historical importance in the global oil industry.
- Guwahati Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 1.0 MMTPA
- Noteworthy: The first public sector refinery in India, the Guwahati Refinery has been a cornerstone of the country’s energy landscape since its commissioning.
- Numaligarh Refinery
- Operating Company: Oil India Limited (OIL)
- Capacity: 3.0 MMTPA
- Noteworthy: This refinery is currently undergoing a major expansion to increase its capacity to 9.0 MMTPA, a project that will significantly boost the refining capacity of the region.
Bihar
- Barauni Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 6.0 MMTPA
- Noteworthy: A vital industrial asset for eastern India, the Barauni Refinery serves a large and growing market.
Gujarat
- Koyali Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 13.7 MMTPA
- Noteworthy: One of the flagship refineries of Indian Oil, the Koyali Refinery is a complex facility that produces a wide range of petroleum products.
- Jamnagar Refinery
- Operating Company: Reliance Industries Limited (RIL)
- Capacity: 33.0 MMTPA (Domestic Tariff Area) & 35.2 MMTPA (Special Economic Zone)
- Noteworthy: The Jamnagar Refinery is the largest and most complex single-location refining complex in the world, a testament to India’s prowess in the global energy sector.
- Nayara Energy Refinery, Vadinar
- Operating Company: Nayara Energy Limited (a consortium led by Rosneft)
- Capacity: 20.0 MMTPA
- Noteworthy: A significant player in the private sector, the Vadinar Refinery is a technologically advanced facility with a large capacity.
Haryana
- Panipat Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 15.0 MMTPA
- Noteworthy: A strategically important refinery for northern India, the Panipat Refinery is also integrated with a petrochemical complex.
Karnataka
- Mangalore Refinery and Petrochemicals Limited (MRPL)
- Operating Company: Oil and Natural Gas Corporation (ONGC)
- Capacity: 15.0 MMTPA
- Noteworthy: A subsidiary of ONGC, MRPL is a coastal refinery that caters to the fuel demands of the southern states.
Kerala
- Kochi Refinery
- Operating Company: Bharat Petroleum Corporation Limited (BPCL)
- Capacity: 15.5 MMTPA
- Noteworthy: The Kochi Refinery is a major industrial facility in southern India and has undergone significant upgrades to produce clean fuels.
Madhya Pradesh
- Bina Refinery
- Operating Company: Bharat Petroleum Corporation Limited (BPCL)
- Capacity: 7.8 MMTPA
- Noteworthy: A critical inland refinery, the Bina Refinery plays a key role in supplying petroleum products to central India.
Maharashtra
- Mumbai Refinery
- Operating Company: Hindustan Petroleum Corporation Limited (HPCL)
- Capacity: 7.5 MMTPA
- Noteworthy: Located in the financial capital of India, this refinery has been a long-standing contributor to the region’s energy needs.
- Mumbai Refinery
- Operating Company: Bharat Petroleum Corporation Limited (BPCL)
- Capacity: 12.0 MMTPA
- Noteworthy: Another major refining facility in Mumbai, this BPCL refinery is crucial for meeting the high energy demands of the western region.
Odisha
- Paradip Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 15.0 MMTPA
- Noteworthy: One of the most modern refineries in India, the Paradip Refinery is capable of processing a wide variety of crude oils and is a key energy hub on the east coast.
Punjab
- Guru Gobind Singh Refinery, Bathinda
- Operating Company: HPCL-Mittal Energy Limited (HMEL) – A joint venture between HPCL and Mittal Energy
- Capacity: 11.3 MMTPA
- Noteworthy: A large-scale refinery in northern India, it plays a vital role in meeting the energy demands of Punjab and neighboring states.
Rajasthan
- Barmer Refinery
- Operating Company: HPCL Rajasthan Refinery Limited (HRRL) – A joint venture between HPCL and the Government of Rajasthan
- Capacity: 9.0 MMTPA (under construction)
- Noteworthy: This new-generation, integrated refining-cum-petrochemical complex is a project of national importance and is expected to be a game-changer for the economy of Rajasthan.
Tamil Nadu
- Manali Refinery, Chennai
- Operating Company: Chennai Petroleum Corporation Limited (CPCL) – A subsidiary of IOCL
- Capacity: 10.5 MMTPA
- Noteworthy: A key supplier of petroleum products to Tamil Nadu and surrounding states, the Manali Refinery is an integral part of southern India’s energy infrastructure.
- Nagapattinam Refinery
- Operating Company: Chennai Petroleum Corporation Limited (CPCL)
- Capacity: Currently undergoing major expansion to 9.0 MMTPA
- Noteworthy: The existing small-capacity refinery is being replaced by a modern, large-scale facility, which will significantly enhance the refining capacity in the state.
Uttar Pradesh
- Mathura Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 8.0 MMTPA
- Noteworthy: Strategically located to serve the high-demand regions of northern and central India, the Mathura Refinery is a key asset for the nation.
West Bengal
- Haldia Refinery
- Operating Company: Indian Oil Corporation Limited (IOCL)
- Capacity: 8.0 MMTPA
- Noteworthy: A major industrial unit in eastern India, the Haldia Refinery is crucial for supplying petroleum products to West Bengal and neighboring states.

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