Ukraine Drones Hit Russia's Largest Refinery
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- Ukraine struck Russia's largest oil refinery in the Omsk region of western Siberia on Monday, one of its longest-range attacks in a conflict now well into its fifth year, according to industry sources.
- CDU-10, which accounts for 38% of the plant's capacity at 24,580 metric tons per day, caught fire and was damaged in the attack, while CDU-11 (37% of capacity, 24,000 tons/day) was also taken offline because essential network links were hit and could resume "in the near future."
- Anatoly Seryshev, President Vladimir Putin's representative in Siberia, confirmed facilities were damaged with no personnel injured and said damage assessment and restoration work are underway.
- Gazprom Neft, which owns the Omsk refinery, did not immediately respond to a request for comment, and the plant stopped selling gasoline and diesel on the St. Petersburg International Mercantile Exchange on Tuesday.
- The Omsk refinery processed 22 million tons of oil (~440,000 barrels per day) in 2024, producing 5 million tons of gasoline and 8 million tons of diesel — making the halt a major blow to Russia's domestic fuel supply.
- Two mothballed primary refining units, CDU-7 and CDU-8, each with 10,000 tons of capacity, exist at the plant and could theoretically be restarted, though no timeline was given.
Why it matters: The loss of roughly 75% of primary refining capacity at Russia's top gasoline producer — its largest facility, in Siberia — directly deepens the country's existing fuel shortages, with the only theoretical backup being two mothballed units that would still leave a significant production gap.
