AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 10 |
CHTT
| Chicago Heights Terminal Transfer | 13 |
CN
| Canadian National Railways | 3 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 1 |
CR
| Conrail | 12 |
CSS
| Chicago South Shore And South Bend | 8 |
CSX
| CSX Railroad | 5 |
EJE
| Elgin Joliet and Eastern | 2 |
GACX
| General American Marks Company | 3 |
GTW
| Grand Trunk Western | 5 |
HS
| H and S Railroad Company | 1 |
IHB
| Indiana Harbor Belt | 6 |
MBKX
| Mitsui Rail Capital | 20 |
MP
| Missouri Pacific | 1 |
NOKL
| Northwestern Oklahoma | 5 |
NS
| Norfolk Southern | 32 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 5 |
PRR
| Pennsylvania Railroad | 1 |
TFM
| Kansas City Southern De Mexico | 1 |
TR
| Tomahawk Railway L.P. | 2 |
UP
| Union Pacific Railroad Company | 13 |
WRWK
| Providence & Worchester Railroad | 10 |