# Montana Renewables (Great Falls) -- formerly Calumet Montana Refining

Montana Renewables (Great Falls) -- formerly Calumet Montana Refining, Great Falls, MT. 15,000 bpd crude capacity (EIA-820). Status: converted. Crude supply, outlets, events.

- Location: Great Falls, MT
- Status: converted — The Great Falls facility has transitioned from conventional crude oil refining to renewable fuels production (sustainable aviation fuel and renewable diesel). Per montanarenewables.com (retrieved 2026-09-23), it currently produces approximately 30 million gallons/year of SAF (MaxSAF SPK), with an announced expansion to approximately 200 million gallons/year of SAF capacity, plus renewable diesel and renewable naphtha. This is a material change from the graph's framing of this node as a conventional crude refinery.
- Crude capacity: 15,000 bpd (EIA-820)
- Operator: Montana Renewables, LLC
- Parent: Calumet, Inc.

## Product outlets
- truck_rack: Regional distribution to the Northwest US and Canada (specific logistics mode unconfirmed) — montanarenewables.com states the site is well-positioned to receive and deliver renewable products to the Northwest US and Canada but does not specify pipeline, rail, or truck-rack logistics. Mode marked truck_rack as the most likely default for a renewable-fuels plant, not because it was directly documented.

## Recent events
- 2025 (approximate -- undated on source) — Montana Renewables announced an expansion of SAF capacity to approximately 200 million gallons/year, up from roughly 30 million gallons/year.
- 2022 — Montana Renewables LLC (a Calumet, Inc. subsidiary) was established at the Great Falls site, converting/expanding it from a small conventional crude refinery toward renewable diesel and sustainable aviation fuel (SAF) production.

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Source: Thinking On Energy Supply Explorer — https://thinkingonenergy.com/supply/refinery/calumet-montana-refining-llc-great-falls-mt/
Built from published FERC pipeline tariffs, EIA-820, the IRS Terminal Control Number list and sourced research. Rates are line-haul only. Cite as: Thinking On Energy, Supply Explorer, 2026-09-28.