What happened

Ukraine's General Staff said Ukrainian Defense Forces drones struck the Novokuibyshevsk oil refinery, a Rosneft subsidiary with roughly 8.8 million tonnes per year of processing capacity, in Samara Oblast on 22 August, sparking a fire on the refinery grounds. The same strike wave reportedly also hit the nearby Ozon logistics and e-commerce hub. Ukraine described the refinery as supplying fuel — gasoline, diesel and aviation fuel — to Russian forces. No casualties were reported in the coverage reviewed, and Samara Oblast officials had not published a damage or production-impact assessment at the time this record was added. This is a separate strike from the 18 April 2026 attack on the same refinery already recorded on this map.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.