Rosneft’s oil refinery at Ryazan, Russia’s fourth-largest, has suspended crude processing after a Ukrainian drone attack this weekend, industry sources told Reuters on Tuesday. The Ryazan refinery, which has been targeted – and hit – by drone strikes all year, has now halted its main crude distillation unit. “The plant is expected to remain idle until the end of the month. No (oil product) loadings are planned before December 1,” according to one of Reuters’ sources. …