Accident Description

Accident: Husky Energy Superior Refinery Explosion and Fire

Location: Location: Superior, WI

Accident Occurred On: 04/26/2018 | Final Report Released On: 12/23/2022

Accident Type: Oil and Refining - Fire and Explosion

Investigation Status: The CSB's investigation was approved December 23, 2022.

The refinery was shutting down in preparation for a five-week turnaround when an explosion occurred, sending several people to area hospitals with injuries.

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