- BNSF Railway (BNSF) – 115 Empire Builder Basalt
- Butte, Anaconda and Pacific Railway (BAP)- 115 Empire Builder Basalt
- Central Montana Rail, Inc. (CM) – 130 Northern Pacific Gray Model Railroad Ballast
- Dakota, Missouri Valley and Western Railroad (DMVW)- 115 Empire Builder Basalt
- Mission Mountain Railroad (MMT) – 122 Yard Mix
- Montana Rail Link (MRL) – 115 Empire Builder Basalt
- Union Pacific Railroad (UP) – 115 Empire Builder Basalt
- Yellowstone Valley Railroad (YSVR)- 115 Empire Builder Basalt with 101 Red Cinder Ballast
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