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Top 10 Largest Refineries Worldwide in 2025
1. Jamnagar Refinery, India – 1.40 Million Barrels Per Day
Leading the global list is the Jamnagar Refinery in India, with an astonishing capacity of 1.40 million barrels daily. Owned by Reliance Industries, this massive complex is considered the largest refining hub globally. Its strategic location and advanced technology allow it to process a diverse range of crude oils, supporting India’s booming energy demands and export capabilities.
2. Paraguana Refinery Complex, Venezuela – 940,000 Barrels Per Day
Venezuela’s Paraguana Refinery Complex ranks second worldwide. Spanning multiple units, this complex has the capacity to refine nearly a million barrels per day. Historically, it has been a cornerstone of Venezuela’s economy, though recent challenges have affected its operational efficiency. Still, it remains one of the biggest refining facilities in Latin America.
3. SK Energy Ulsan Refinery, South Korea – 850,000 Barrels Per Day
South Korea’s SK Energy Ulsan Refinery is among the top global players, with a capacity of 850,000 barrels every day. Situated in the industrial hub of Ulsan, this plant plays an essential role in supplying both domestic markets and exporting refined products across Asia. Its modern infrastructure highlights South Korea’s technological prowess in refining.
4. Ruwais Refinery, United Arab Emirates – 817,000 Barrels Per Day
The UAE’s Ruwais Refinery stands out for its efficient operations and strategic location. Capable of processing over 800,000 barrels daily, it supplies significant amounts of fuel and petrochemicals to the Middle East, Africa, and beyond. It’s a critical part of the country’s broader energy and petrochemical complex.
5. GS Caltex Yeosu Refinery, South Korea – 730,000 Barrels Per Day
Another South Korean giant, the GS Caltex Yeosu Refinery, processes approximately 730,000 barrels a day. Known for its high-quality refining capabilities and commitment to environmental standards, this facility continues to play a vital role in South Korea’s energy landscape.
6. S-Oil Onsan Refinery, South Korea – 670,000 Barrels Per Day
Completing South Korea’s impressive cadre of large refineries is S-Oil’s Onsan plant, with a capacity of 670,000 barrels per day. Its advanced refining technology enables it to produce high-value petrochemical products, supporting both domestic needs and exports.
7. ExxonMobil Singapore Refinery – 605,000 Barrels Per Day
Situated at one of the world’s busiest ports, the ExxonMobil Singapore Refinery processes 605,000 barrels daily. As a crucial hub in Southeast Asia’s energy network, it specializes in refining heavy crude oils and supplying the region with gasoline, diesel, and jet fuels.
8. Port Arthur Refinery, USA – 600,000 Barrels Per Day
The Port Arthur Refinery in Texas is one of the largest in the United States, capable of processing 600,000 barrels per day. Its strategic location near the Gulf of Mexico facilitates export to international markets, especially in Latin America and Europe.
9. Baytown Refinery, USA – 560,000 Barrels Per Day
Adjacent to Port Arthur, the Baytown Refinery is a cornerstone of U.S. refining capacity. With a capacity of 560,000 barrels daily, it produces a wide array of refined fuels, supporting both domestic consumption and exports.
10. Ras Tanura Refinery, Saudi Arabia – 550,000 Barrels Per Day
Completing the top ten is Saudi Arabia’s Ras Tanura Refinery, with a capacity of approximately 550,000 barrels. As one of the oldest and most significant refineries in the Middle East, it plays a vital role in OPEC’s strategy to maintain global oil supply stability.
Source: Oil and Gas Club (Data as of 2025)
Note: The figures mentioned reflect official nameplate capacities and may fluctuate slightly due to maintenance schedules, upgrades, or changes in crude slate.
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