AOK
| Arkansas-Oklahoma Railroad | 7 |
ATW
| Atlantic and Western | 11 |
BNSF
| BNSF Railway | 31 |
CIBX
| CIT Group/Capital Finance, Inc | 1 |
CN
| Canadian National Railways | 4 |
COER
| Crab Orchard & Egyptian | 12 |
CRLE
| Coe Rail Incorporated | 2 |
FBOX
| TTX Company | 123 |
GACX
| General American Marks Company | 1 |
GTW
| Grand Trunk Western | 19 |
HS
| H and S Railroad Company | 4 |
IBT
| International Bridge and Terminal Company | 358 |
KCS
| Kansas City Southern | 23 |
LRS
| Laurinburg and Southern | 8 |
MDW
| Minnesota Dakota and Western Railway Com | 12 |
MRL
| Montana Rail Link | 2 |
MTNR
| Mississippi Tennessee Railroad LLC | 7 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 5 |
NOKL
| Northwestern Oklahoma | 24 |
SP
| Southern Pacific | 5 |
SRN
| Sabine River & Northern | 3 |
TOE
| Texas Oklahoma and Eastern RR Company | 11 |
TOFX
| TTX Company - Box Cars | 10 |
TR
| Tomahawk Railway L.P. | 4 |
UCRY
| Utah Central | 3 |
UP
| Union Pacific Railroad Company | 2 |
WRWK
| Providence & Worchester Railroad | 23 |