Suncor Energy’s oil refinery in Commerce City exceeded its permitted pollution limits for more than 900 cumulative hours during its three-month shutdown in late 2022 and early 2023, according to a ...

DENVER — A federal appeals court is deciding whether to bring back a lawsuit by environmental groups against Suncor over ongoing pollution violations. Colorado GreenLatinos, Sierra Club and others ...

When a malfunction at Suncor Energy’s oil refinery spewed sulfur dioxide into the air over Commerce City in the predawn hours of April 12, a machine quietly sampling air quality in the community ...

DENVER (KDVR) — The Colorado Department of Public Health and Environment on Monday announced an enforcement package against Suncor and said it must pay at least $10.5 million toward penalties and ...

DENVER (KDVR) — Three environmental justice and conservation groups submitted a 60-day notice of intent to sue a Commerce City oil refinery, the day after the state renewed Suncor Energy’s operating ...

The Environmental Protection Agency is warning that Suncor has more air pollution incidents than most other refineries because of poor maintenance, testing and inspection. The report released Friday ...

A new report from the U.S. Environmental Protection Agency finds that the Suncor Energy refinery in Commerce City has more malfunctions and more frequent unplanned pollution releases than other ...

Getting your Trinity Audio player ready... We need full disclosure, accountability regarding Suncor Re: “Suncor’s obtuse response to pollution,” Jan. 29 editorial Your editorial rightfully raises ...