On April 26, 2018, an explosion and fire rocked the Husky Energy refinery in Superior.
And after five years of reconstruction, the facility is beginning to reopen.
"We have commenced restart of the refinery and introduced crude in late March," said Doreen Cole, senior vice president of downstream manufacturing at Cenovus, which now owns the refinery. "So the restart process is underway."
The rebuild of the facility has taken longer and cost more than first expected.
In late December, the U.S. Chemical and Safety and Hazard Investigation Board released its final report on the 2018 fire and explosion, reiterating that the explosion took place in the fluid catalytic cracking unit when air and hydrocarbons mixed during a planned turnaround. Key industry safeguards were not implemented, the report said.