Suncor Energy Inc. says it is in the process of restarting production at its Edmonton refinery after it was knocked offline by a power outage on Tuesday afternoon.
The company, which owns Petro-Canada stations across Canada, is warning residents near the facility on the eastern outskirts of the provincial capital that they may see more visible flaring as restarting progresses.
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Spokeswoman Nicole Fisher says there were no injuries as a result of the power disruption.
Suncor shut down the entire 142,000-barrel-per-day oilsands-fed Edmonton refinery all at once for maintenance for the first time in its 67-year history during the second quarter this year.
READ MORE: Suncor refinery restart to ease Petro-Canada station fuel outages
The maintenance took longer than expected and resulted in fuel supply shortages at some Petro-Canada stations in Western Canada.
Suncor reported its overall refinery crude throughput was 344,100 bpd in the three months ended June 30, down from 435,500 bpd in the year-earlier period, mainly due to maintenance performed at all four of its refineries.