In a new operational blow to Russia’s refining capacity, the Kirishi complex has reportedly shut down its CDU-6 crude distillation unit, the largest processing block at the plant, following damage from a Ukrainian drone strike. According to Reuters, the refinery’s core capacity is now offline, though this has not been confirmed officially by Moscow. The CDU-6 unit historically accounts for most of Kirishi’s processing output, and its halt means a significant drop in daily refined product volumes. Two industry…