CNA
| Canadian National Railways | 1 |
COER
| Crab Orchard & Egyptian | 1 |
DWC
| Canadian National Railways | 1 |
FBOX
| TTX Company | 3 |
KCS
| Kansas City Southern | 1 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 6 |
PMRX
| Progress Metal Reclamation Company | 1 |
SOO
| Soo Line | 1 |
WC
| Wisconsin Central | 3 |