Maintenance at Calumet may cause increased flaring

Calumet Montana Refining is performing maintenance activities, which are expected to be completed Friday, at the refinery.

There may be increased flaring during this time and the flame will be visible and may also be heard, according to a Calumet release. The gas that is being flared is primarily hydrogen.

Refinery flares are essential safety devices in refinery operations, and they are subject to strict regulatory controls that Calumet will comply with, according to the release.

This flaring activity does not pose any threat to human health, safety or the environment. Crews are working to complete maintenance activities as quickly as possible and return the refinery to normal operations.