Ukraine drones hit major Russian oil refinery in Perm Ukraine has expanded drone strikes deep into Russia, targeting a major Lukoil oil refinery in Perm, more than 1,500km from the front line. 1 May 2026 Ukrainian forces have expanded their strikes deep into Russian territory, targeting key oil infrastructure in the city of Perm, more than 1,500km from the front line. Ukrainian drones hit major Russian oil infrastructure in escalating energy war The attack hit an Lukoil refinery, one of the largest in Russia, according to Ukraine's Security Service (SBU).