AGR
| Alabama and Gulf Coast | 6 |
BKTY
| Union Pacific Railroad Company | 2 |
KCS
| Kansas City Southern | 1 |
MEC
| Maine Central | 1 |
NOKL
| Northwestern Oklahoma | 1 |
SP
| Southern Pacific | 1 |
TASD
| Terminal Alabama State Docks | 1 |
TR
| Tomahawk Railway L.P. | 1 |
WC
| Wisconsin Central | 1 |