ATSF
| Atchison Topeka & Santa Fe | 6 |
ATW
| Atlantic and Western | 1 |
BLE
| Bessemer & Lake Erie | 2 |
BN
| Burlington Northern | 9 |
BNSF
| BNSF Railway | 8 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CN
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 1 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 2 |
CWEX
| Midwest Generation LLC | 230 |
DJJX
| Joseph Transportation Incorporated | 1 |
EJE
| Elgin Joliet and Eastern | 7 |
GEAX
| General Electric Rail Services | 54 |
GNTX
| TTX Company | 2 |
GONX
| Railgon Company | 3 |
HS
| H and S Railroad Company | 1 |
IAIS
| Iowa Interstate | 19 |
ICG
| Illinois Central Gulf | 2 |
IHB
| Indiana Harbor Belt | 6 |
JTIX
| David J Joseph Company | 1 |
MP
| Missouri Pacific | 1 |
MS
| Michigan Shore Railroad Incorporated | 1 |
MWCX
| Midwest Railcar Corporation | 2 |
MWGX
| Midwest Generation LLC | 206 |
NOKL
| Northwestern Oklahoma | 2 |
NORX
| Northern Indiana Public Service Company | 25 |
NW
| Norfolk & Western | 1 |
UP
| Union Pacific Railroad Company | 3 |
WC
| Wisconsin Central | 3 |