Welcome to the Environmental Website for Calumet Montana Refinery

This site provides information regarding the Site-Wide Corrective Action taking place at the refinery.

For more information on refinery operation visit the Calumet Specialty website at:


General Information

1900 10th St NE
Great Falls, MT 59404


Tel: (406) 761-4100

Main Fax: (406) 761-0174

Refinery Building Fax: (406) 761-0777


Calumet Speciality website: https://www.calumetspecialty.com


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