UPDATE: 4:45 pm
Power has been restored at Calumet Montana Refining following an unplanned transformer outage. With power restored, crews are safely returning systems to normal operating conditions.
During the outage and restoration process, the community may have observed increased flaring and elevated noise. This flaring is a normal part of safely managing refinery operations during a power interruption and restart. Flaring will decrease as systems continue to normalize.
Calumet has been in continuous communication with the City of Great Falls Fire Chief Jeremy Virts throughout the day and will continue to maintain open, transparent communication with the Great Falls Fire Rescue Department.
ORIGINAL POST: 10:45 am
Calumet Montana is currently experiencing a power outage due to an unplanned transformer failure. Power has not yet been restored, and crews are actively working to address the issue. At this time, there is no estimated timeline for when power will be restored.
During the outage, residents may notice increased flaring from the facility. This flaring is a normal response to the circumstances and is not a cause for concern. It may continue until power is restored and the systems can return to normal operations.
Calumet prioritizes the health and safety of its team members and the surrounding community. They have confirmed that all plant personnel are safe and that there is no threat to the community.
Please stay tuned to The Great Falls Gazette as additional information will be provided as it becomes available.
By Karen Anderson: April 23, 2026 – Great Falls, Mt
Author: Karen Anderson
Karen is the Editor-in-Chief overseeing all news operations at Foxys Publishing Co. She also loves photography and spending time with her dogs.
