An attack carried out by Ukrainian drones hit the Omsk Refinery, Russia’s largest, on July 6, 2026, marking the first time the facility has been reached since the start of the campaign of strikes against Russian energy infrastructure.
Images shared on social media indicate that at least seven unmanned aircraft managed to hit the industrial complex, considered one of the country’s most protected targets due to its location in Siberia.
Video recordings also show a Su-57 stealth fighter operating in the region during the attack. According to reports published online, the aircraft was allegedly used to try to intercept the drones before they reached the refinery, but it was unable to prevent the impacts. Until then, Omsk had been among the only two of Russia’s ten largest refineries that had never been hit by Ukrainian drones.
Aviation specialists point out that the presence of the Su-57 reinforces indications that Russia has begun using its fifth-generation fighters in defense missions against drones and cruise missiles, a role normally performed by ground-based air defense systems. Analysts assess that this change may reflect challenges faced by the air protection network responsible for defending strategic facilities.
In addition to its high oil-processing capacity, the Omsk Refinery holds strategic importance because it houses Russia’s only producer of cracking catalysts, essential components for the operation of other refineries in the country. The attack increases pressure on Russia’s energy infrastructure and represents another advance in Ukraine’s campaign aimed at reducing Russia’s refining and fuel supply capacity.
The Su-57 is hunting Ukrainian drones in the sky over Omsk.
This piece of metal crap only managed to shot down one drone. All others hit their target pic.twitter.com/vmxqWXvxEq
— Exilenova+ (@Exilenova_plus) July 6, 2026
Source: Defence Blog | Photos: Telegram @exilenova_plus | Telegram @uac_ru | This content was created with the help of AI and reviewed by the editorial team
