Ukraine's General Staff separately confirmed the strike on the Ryazan Oil Refinery, saying it caused a fire on the facility's grounds. Owned by Rosneft, the Ryazan Oil Refinery produces upwards of 17.1 million tons of oil per year and accounts for roughly 5% of the Russia's total processing output. The facility has been a regular target of Ukraine's attacks on Russian oil infrastructure. A strike in May forced the Ryazan Oil Refinery to temporarily halt operations, contributing to a nationwide fuel crisis as Ukraine hammered refineries across Russia. 0:00 / 1× Footage filmed by a local resident reportedly shows a drone attack at the Ryazan Oil Refinery in Ryazan, Russia in the early hours of July 29.