BNSF
| BNSF Railway | 2 |
CN
| Canadian National Railways | 2 |
CNA
| Canadian National Railways | 4 |
MR
| McCloud Railway Company | 1 |
ONT
| Ontario Northland Railway | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
TR
| Tomahawk Railway L.P. | 1 |
WC
| Wisconsin Central | 21 |
WE
| Wheeling & Lake Erie | 2 |