What happened

An early-morning explosion hit a main crude-oil storage tank at the New American Oil refinery in Plaza Huincul, igniting a major fire that destroyed six trucks. Three night-shift workers producing diesel fuel were killed. Later drone inspections found missing pressure valves and gaps in some crude-storage tanks; the precise cause remained contested in subsequent court proceedings. This was an accidental incident at a licensed industrial refinery, not an attack.

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.