Suncor Energy's 117,000 b/d Commerce City, Colo., refinery is restarting following an unplanned operational shutdown related to a third-party power outage on Monday, the company said in a community notification.
Increased smoke and flaring may also be visible, Calgary-based Suncor said in the notification released Tuesday.
The company said the refinery, located about 10 miles northeast of downtown Denver, has not detected air contaminants exceeding thresholds.
In the company's first-quarter earnings call last week, Suncor Executive Vice President of Downstream Dave Oldreive told analysts that the Commerce City's Q1 turnaround was "largely behind us."
The Colorado refinery started planned maintenance in mid-March and it began to restart the facility in early May, previous community notifications showed.
The Commerce City refinery, which processes crude oil from the Denver-Julesburg Basin, sells nearly 95% of its products within Colorado and supplies about a third of its jet fuel to the Denver International Airport.
This content was created by Oil Price Information Service, which is operated by Dow Jones & Co. OPIS is run independently from Dow Jones Newswires and The Wall Street Journal.
Reporting by Frank Tang, ftang@opisnet.com; Editing by Michael Kelly, mkelly@opisnet.com
(END) Dow Jones Newswires
May 12, 2026 17:17 ET (21:17 GMT)
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