https://www.reuters.com/business/energy/russias-largest-oil-refinery-halts-processing-after-drone-attack-sources-say-2026-07-07/ Russia's largest oil refinery halts processing after drone attack, sources say uly 7 (Reuters) - Omsk oil refinery, Russia's largest, has halted operations following a Ukrainian drone attack, two industry sources said on Tuesday. Monday's strike on the refinery, deep in Siberia, was one of Ukraine's longest-range attacks of the conflict, now well into its fifth year. The halt in operations at the plant, which is Russia's top producer of petrol, is likely to exacerbate fuel shortages across the country. "Facilities at the Omsk oil refinery were damaged as a result of (Monday's) attack. No plant personnel were injured," Anatoly Seryshev, President Vladimir Putin's representative in Siberia, said in a statement on Tuesday. "Damage assessment is currently under way, and competent services have organized restoration work," Seryshev said, without spelling out how the refinery's operations were affected. Gazprom Neft, which owns the refinery, did not immediately reply to a request for comment. According to the sources, a crude distillation unit, CDU-10, which accounts for around 38% of the plant's production capability with a capacity of 24,580 metric tons a day, caught fire and was damaged in the attack. ...