ADMX
| ADM Transportation Company | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CN
| Canadian National Railways | 1 |
CSX
| CSX Railroad | 5 |
FLIX
| Greenbrier Management Services LLC | 5 |
FURX
| First Union Rail | 1 |
GACX
| General American Marks Company | 5 |
NOKL
| Northwestern Oklahoma | 2 |
RISX
| RISX | 2 |
UP
| Union Pacific Railroad Company | 3 |