The governor of Russia’s Samara Oblast reported on March 16 that two Rosneft oil refineries in the area were targeted by Ukrainian drones, resulting in no casualties but leaving one facility on fire. Ukraine has launched a concerted effort to degrade Russia’s oil production capabilities, targeting refineries across the country. Earlier this week, oil refineries were attacked in Ryazan, Nizhny Novgorod, and Leningrad oblasts. The facilities hit by Ukrainian drones in the past days account for about 12% of Russia’s oil-processing capacity, Bloomberg reported. The Volga river region’s Syzran refi…