AOK
| Arkansas-Oklahoma Railroad | 12 |
ATW
| Atlantic and Western | 2 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 3 |
CIGX
| THE CIT GROUP/CAPITAL FINANCE, INC. | 11 |
CN
| Canadian National Railways | 9 |
CP
| Canadian Pacific Railway | 9 |
CR
| Conrail | 5 |
CSS
| Chicago South Shore And South Bend | 10 |
CSX
| CSX Railroad | 47 |
CTRN
| Union Pacific Railroad Company | 3 |
DLRX
| General Electric Rail Services | 1 |
EJE
| Elgin Joliet and Eastern | 2 |
FURX
| First Union Rail | 11 |
GRW
| Gary Railway | 4 |
HS
| H and S Railroad Company | 1 |
IC
| Illinois Central | 3 |
ICE
| Iowa Chicago and Eastern | 3 |
IHB
| Indiana Harbor Belt | 12 |
KCS
| Kansas City Southern | 1 |
LRS
| Laurinburg and Southern | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
NDYX
| First Union Rail | 3 |
NOKL
| Northwestern Oklahoma | 6 |
NS
| Norfolk Southern | 26 |
NYC
| New York Central | 2 |
SMW
| St Marys Railway West LLC | 4 |
TR
| Tomahawk Railway L.P. | 4 |
UP
| Union Pacific Railroad Company | 3 |
WE
| Wheeling & Lake Erie | 1 |
WFRX
| WELLS FARGO RAIL CORPORATION | 1 |
WRWK
| Providence & Worchester Railroad | 1 |