Suncor Commerce City Refinery Starts Up After Outage
5/12 4:37 PM
Suncor Commerce City Refinery Starts Up After Outage Miguel E. Andujar DTN Refined Fuels Market Reporter DAVENPORT, FL (DTN) -- Suncor Energy reported an unplanned operational shutdown at its 98,000 bpd refinery in Commerce City, Colorado, following a third-party power outage on Sunday (5/11), according to a community notification issued by the company. Suncor said refinery units were undergoing startup activities following the outage and that increased smoke or flaring could be visible from the facility during the restart process. Commerce City and North Denver community air monitoring network, along with the refinery's fenceline monitoring system, had not detected air quality readings above applicable health thresholds, according to the filing. The refinery is the only petroleum refinery in Colorado and primarily produces gasoline, diesel, and asphalt, with roughly 95% of its products remaining within the state. The latest event follows a similar notification issued by Suncor on May 8, when the company warned that increased smoke and flaring could be visible during startup activities tied to maintenance work. DTN contacted Suncor for further comment, but the company did not immediately respond. (c) Copyright 2026 DTN, LLC. All rights reserved.