AOK
| Arkansas-Oklahoma Railroad | 5 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 8 |
CAGY
| Columbus & Greenville Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CIGX
| THE CIT GROUP/CAPITAL FINANCE, INC. | 1 |
CN
| Canadian National Railways | 41 |
COER
| Crab Orchard & Egyptian | 2 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 4 |
CSS
| Chicago South Shore And South Bend | 45 |
CSX
| CSX Railroad | 82 |
CTRN
| Union Pacific Railroad Company | 2 |
EJE
| Elgin Joliet and Eastern | 1 |
FURX
| First Union Rail | 3 |
GACX
| General American Marks Company | 1 |
GRW
| Gary Railway | 92 |
HS
| H and S Railroad Company | 1 |
IC
| Illinois Central | 11 |
IHB
| Indiana Harbor Belt | 60 |
KCS
| Kansas City Southern | 2 |
LRS
| Laurinburg and Southern | 6 |
LW
| Louisville and Wadley Railway Company | 2 |
MBKX
| Mitsui Rail Capital | 7 |
NDYX
| First Union Rail | 5 |
NOKL
| Northwestern Oklahoma | 18 |
NS
| Norfolk Southern | 43 |
NYC
| New York Central | 3 |
SMW
| St Marys Railway West LLC | 36 |
TFM
| Kansas City Southern De Mexico | 1 |
TR
| Tomahawk Railway L.P. | 5 |
UP
| Union Pacific Railroad Company | 2 |
WFRX
| WELLS FARGO RAIL CORPORATION | 2 |