AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 1 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 3 |
CAGY
| Columbus & Greenville Railway | 2 |
CHTT
| Chicago Heights Terminal Transfer | 4 |
CP
| Canadian Pacific Railway | 3 |
CR
| Conrail | 16 |
CSS
| Chicago South Shore And South Bend | 5 |
CSX
| CSX Railroad | 24 |
CTRN
| Union Pacific Railroad Company | 1 |
FURX
| First Union Rail | 1 |
GRW
| Gary Railway | 1 |
KCS
| Kansas City Southern | 2 |
LW
| Louisville and Wadley Railway Company | 1 |
MP
| Missouri Pacific | 1 |
NOKL
| Northwestern Oklahoma | 9 |
NS
| Norfolk Southern | 54 |
NYC
| New York Central | 4 |
SCIH
| South Chicago & Indiana Harbor Railway C | 1 |
SMW
| St Marys Railway West LLC | 1 |
TFM
| Kansas City Southern De Mexico | 1 |
TR
| Tomahawk Railway L.P. | 2 |
UP
| Union Pacific Railroad Company | 6 |