DWC
| Canadian National Railways | 1 |
GNRR
| Georgia Northeastern | 2 |
GROX
| First Union Rail | 1 |
MSRC
| Kansas City Southern | 1 |
NOKL
| Northwestern Oklahoma | 1 |
SOO
| Soo Line | 1 |
SRY
| Southern Railway of British Columbia Lim | 1 |
TCAX
| General Electric Rail Services | 1 |
TR
| Tomahawk Railway L.P. | 1 |
TTZX
| TTX Company-Centerbeam Flats | 1 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 1 |