AOK
| Arkansas-Oklahoma Railroad | 8 |
BCOL
| Canadian National Railways | 4 |
BNSF
| BNSF Railway | 5 |
CN
| Canadian National Railways | 5 |
COER
| Crab Orchard & Egyptian | 2 |
CSX
| CSX Railroad | 11 |
HLSC
| Hampton Railway Incorporated | 1 |
IANR
| Iowa Northern Ry | 11 |
IC
| Illinois Central | 1 |
LRS
| Laurinburg and Southern | 1 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 4 |
SNC
| Saratoga & North Creek Railway | 1 |
SOO
| Soo Line | 3 |
TR
| Tomahawk Railway L.P. | 1 |
TTZX
| TTX Company-Centerbeam Flats | 16 |
UCRY
| Utah Central | 1 |
UP
| Union Pacific Railroad Company | 4 |
WC
| Wisconsin Central | 1 |