BAR
| Bangor & Aroostook | 1 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 2 |
FBOX
| TTX Company | 1 |
IC
| Illinois Central | 1 |
KCS
| Kansas City Southern | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
MRL
| Montana Rail Link | 2 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 2 |
WC
| Wisconsin Central | 5 |