Ukrainian drone attacks targeted three oil refineries deep inside Russian territory, in what President Vladimir Putin described as an attempt to disrupt the upcoming presidential election. On March 13, a drone strike caused a fire at Rosneft PJSC’s Ryazan plant near Moscow, one of the country’s largest crude-processing facilities. Additionally, a drone attack halted operations at the smaller Novoshakhtinsk refinery in the southern Rostov region. These incidents, along with a similar attack at Lukoil PJSC’s Norsi plant on March 12, have caused significant disruption, Bloomberg reports. The thre…