ARMN
| Union Pacific Railroad Company | 137 |
BNFE
| Burlington Northern Fruit Express | 9 |
BNSF
| BNSF Railway | 11 |
CRYX
| Cryo-Trans Incorporated | 11 |
CSX
| CSX Railroad | 3 |
JRSX
| J.R. Simplot Company | 16 |
TILX
| Trinity Industries Leasing Company | 10 |
UPFE
| Union Pacific Railroad Company | 1 |