What happened

An explosion and fire disabled roughly half of Gazprom Neft's Omsk refinery's processing capacity, affecting crude distillation unit CDU-11 while a second unit, CDU-10, was already idle after an earlier fire. Seven people were hospitalized, one seriously. Russian investigators opened a criminal case over industrial-safety violations; officials said the fire was not linked to a drone attack. This was an accidental industrial incident, distinct from the drone strikes that have separately targeted this refinery.

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.