.Ukraine performs one of its own biggest-ever drone strikes on Russia CNNUkraine Hits Moscow Oil Refinery in Extensive Drone Plethora The Commercial JournalUkraine catapults gigantic drone assault on Russian energy facilities The Washington PostRussia Hits Kharkiv Sports Midpoint After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.