ADMX
| ADM Transportation Company | 2 |
BNSF
| BNSF Railway | 18 |
CABX
| Cabot Corporation | 3 |
CCX
| Columbian Chemicals Co | 4 |
CSX
| CSX Railroad | 4 |
GACX
| General American Marks Company | 38 |
HPJX
| Helm-Pacific Leasing | 3 |
IC
| Illinois Central | 1 |
MP
| Missouri Pacific | 6 |
SOO
| Soo Line | 1 |
UP
| Union Pacific Railroad Company | 2 |