Great Falls, MT — Calumet Montana Refining (CMR) and the Montana Department of Revenue (DOR) have mutually resolved the fair market value of the crude oil refinery in Great Falls. A finalized property tax agreement covering the years 2022 through 2025 was completed on September 15. By statute, DOR must assess businesses at 100% of […] The post Calumet Montana and Department of Revenue Finalize Property Tax Assessment appeared first on Calumet .