AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 1 |
BNSF
| BNSF Railway | 3 |
GAEX
| General American Marks Company | 2 |
IC
| Illinois Central | 1 |
NOKL
| Northwestern Oklahoma | 9 |
NS
| Norfolk Southern | 1 |
SOO
| Soo Line | 20 |
SRY
| Southern Railway of British Columbia Lim | 1 |
TTZX
| TTX Company-Centerbeam Flats | 7 |
UP
| Union Pacific Railroad Company | 1 |
WRWK
| Providence & Worchester Railroad | 3 |