AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 1 |
GAEX
| General American Marks Company | 1 |
HE
| Hollis and Eastern Railroad Company | 1 |
KCS
| Kansas City Southern | 2 |
LRS
| Laurinburg and Southern | 1 |
LRWN
| Little Rock & Western | 2 |
MSRC
| Kansas City Southern | 6 |
NOKL
| Northwestern Oklahoma | 2 |
SMW
| St Marys Railway West LLC | 2 |
SOO
| Soo Line | 1 |
TTZX
| TTX Company-Centerbeam Flats | 14 |
UP
| Union Pacific Railroad Company | 9 |
WC
| Wisconsin Central | 1 |
WRWK
| Providence & Worchester Railroad | 1 |