What happened

Ukrainian military intelligence claimed a 13 September drone strike damaged a central oil-processing unit and tank storage at Slavyansk-ECO. Krasnodar regional authorities separately said an attack on an unnamed enterprise in Slavyansk-on-Kuban injured three people and damaged an oil pipeline. The Russian account did not identify the refinery, while the Ukrainian damage assessment has not been independently verified, so the accounts are presented together without treating every claimed effect as confirmed at Slavyansk-ECO. No production-loss, complete-shutdown or pollution quantity was established. The marker is an approximate refinery-area reference, not a verified impact point.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.