BCOL
| Canadian National Railways | 1 |
BNSF
| BNSF Railway | 1 |
COER
| Crab Orchard & Egyptian | 1 |
FDDM
| Fort Dodge Des Moines & Southern | 2 |
LW
| Louisville and Wadley Railway Company | 1 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 2 |
SERA
| Sierra Northern Railway | 1 |
TR
| Tomahawk Railway L.P. | 2 |
TTZX
| TTX Company-Centerbeam Flats | 3 |
UP
| Union Pacific Railroad Company | 1 |
WRWK
| Providence & Worchester Railroad | 1 |