AOK
| Arkansas-Oklahoma Railroad | 5 |
ATW
| Atlantic and Western | 2 |
BCOL
| Canadian National Railways | 1 |
BNSF
| BNSF Railway | 5 |
CN
| Canadian National Railways | 9 |
CNIS
| Canadian National Railways | 2 |
COER
| Crab Orchard & Egyptian | 1 |
DWC
| Canadian National Railways | 4 |
GTW
| Grand Trunk Western | 1 |
IC
| Illinois Central | 2 |
NOKL
| Northwestern Oklahoma | 4 |
NS
| Norfolk Southern | 2 |
SMW
| St Marys Railway West LLC | 2 |
SOO
| Soo Line | 4 |
TR
| Tomahawk Railway L.P. | 3 |
TTZX
| TTX Company-Centerbeam Flats | 15 |
UCRY
| Utah Central | 1 |
UP
| Union Pacific Railroad Company | 2 |
WC
| Wisconsin Central | 2 |
WRWK
| Providence & Worchester Railroad | 2 |