What happened

Russian missile strikes repeatedly hit Ukraine's largest and only fully functioning oil refinery, at Kremenchuk, beginning in early April 2022 and continuing with further strikes in May and June. Regional officials said the initial attacks destroyed key fuel-processing infrastructure and paralysed the plant; over the course of the war Russia struck the refinery with dozens of missiles and hundreds of drones, and officials said it could not be restored without being rebuilt from scratch.

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.