AOK
| Arkansas-Oklahoma Railroad | 1 |
BKTY
| Union Pacific Railroad Company | 1 |
BNSF
| BNSF Railway | 3 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 1 |
CUOH
| Columbus and Ohio River Railroad Company | 1 |
HS
| H and S Railroad Company | 1 |
KCS
| Kansas City Southern | 1 |
LRS
| Laurinburg and Southern | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
RBOX
| Railbox Company | 3 |
TBOX
| TTX Company | 4 |