Ukraine Strikes Saratov Rosneft Refinery + Kirov Surgut Pipeline Station Overnight; 229 Long-Range Drones Launched — Day 1,558

Overnight on May 31 into June 1, 2026 — Day 1,558 of Russia's full-scale invasion — Ukraine launched 229 long-range drones targeting Russian energy and military infrastructure across multiple Russian regions. Russia's Defense Ministry claimed to shoot down 216 drones; Ukraine's air force reported 212 intercepted. Confirmed major strikes: (1) Saratov Rosneft oil refinery on the Volga River, ~700 km from the front line — a large-scale fire was ignited at the facility, which has a design capacity of ~7 million tonnes/year and supplies fuel to the Russian military and domestic markets. Governor Roman Busargin confirmed 'civil infrastructure' damage in Saratov. (2) Lazarevo pumping station in the Urzhumsky district of Kirov region, northeast of Moscow — approximately 1,300 km from Ukrainian-held territory, one of Ukraine's deepest confirmed energy infrastructure strikes. The station serves the Surgut-Gorky-Polotsk pipeline, shipping Russian crude oil from Siberia to Belarus and onward to European markets. Governor Alexander Sokolov confirmed drones hit a facility in Urzhumsky district. Additional strikes were reported in Belgorod (3 civilians injured), Voronezh, and Rostov regions. Ukraine's General Staff confirmed strikes as part of an escalating June 2026 'long-range sanctions' campaign against Russian energy infrastructure. In May 2026, Ukraine's Unmanned Systems Forces struck 18 oil facilities in Russia and temporarily occupied Ukrainian territories. The overnight campaign continues Ukraine's 2026 energy offensive that has struck more than 12 Russian facilities since March.