AOK
| Arkansas-Oklahoma Railroad | 2 |
BNSF
| BNSF Railway | 1 |
CN
| Canadian National Railways | 2 |
CSX
| CSX Railroad | 3 |
CTRN
| Union Pacific Railroad Company | 1 |
ICE
| Iowa Chicago and Eastern | 1 |
KCS
| Kansas City Southern | 2 |
MP
| Missouri Pacific | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 3 |
UP
| Union Pacific Railroad Company | 2 |