BCOL
| Canadian National Railways | 1 |
BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CNW
| Chicago & Northwestern | 2 |
CR
| Conrail | 2 |
CSL
| Chicago Short Line Railway Company | 1 |
CSX
| CSX Railroad | 2 |
EJE
| Elgin Joliet and Eastern | 6 |
FPPX
| Fayette Power Project (Texas) | 1 |
MHFX
| MHF Logistical Solutions Incorporated | 1 |
NKP
| Nickel Plate | 1 |
NORX
| Northern Indiana Public Service Company | 1 |
NSAX
| National Steel Corporation | 1 |
PC
| Penn Central | 1 |
VMMX
| AMG RESOURCES CORPORATION [VULCAN MATERIALS CO., METALS DIV.] | 1 |
WC
| Wisconsin Central | 1 |
WPSX
| Wisconsin Public Service | 1 |