Russia’s Syzran Oil Refinery Completely Shuts Down After Primary Processing Unit Damaged

Russia’s Syzran oil refinery in the Samara region has halted operations after a May 21 Ukrainian drone attack damaged its main crude processing unit, according to two industry sources cited by Reuters on May 25.

Sources told Reuters that the refinery's CDU-6 crude distillation unit, which accounts for more than 70% of the plant's capacity, was shut down following the strike. Repairs could take more than a month, they added.

The local governor, Vyacheslav Fedorishchev, reported a drone attack on Syzran in Russia’s Samara region, while Ukraine confirmed it had struck the refinery. Rosneft, which owns the facility, did not immediately respond to a request for comment.

The plant has a nameplate capacity of 8.5 million metric tons a year, or 170,000 barrels per day. In 2024, it processed 4.3 million tons of crude oil, producing 1.5 million tons of diesel, 800,000 tons of gasoline, and 700,000 tons of fuel oil.

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War in Ukraine

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The Syzran shutdown forms part of a broader Ukrainian campaign against Russia's oil-processing infrastructure.

Ukrainian forces have carried out at least 158 strikes against Russian refineries since the start of the full-scale invasion, hitting 24 of the country's 33 largest plants, with the Ryazan and Saratov facilities targeted most frequently.

Russia's oil industry suffered more than $13 billion in combined direct and indirect losses in 2025 due to the drone campaign, while national refining volumes fell to their lowest level since 2009.

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