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 ...

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 — Environmental groups took the first step to sue the owner of an oil refinery near Denver for years of pollution violations, saying Wednesday that state regulators haven’t done enough to hold ...

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 ...

COMMERCE CITY, Colo. (KDVR) — Higher-than-normal levels of air pollution were found in the areas surrounding the Suncor refinery, the Colorado Department of Public Health and Environment said. CDPHE ...

The incident drew immediate negative reaction from community members and local elected officials who have long pushed for ...

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 ...

Suncor Energy’s refinery operations in Commerce City are of regional concern — for health and safety, for the supply of fuels and asphalt, for problematic greenhouse gas emissions, and for ...

The Suncor Energy refinery returned to normal operations yesterday afternoon, after the power outage prompted a steady flame ...