AOK
| Arkansas-Oklahoma Railroad | 3 |
ATW
| Atlantic and Western | 10 |
BNSF
| BNSF Railway | 37 |
CEFX
| CIT Group/Capital Finance, Inc | 2 |
CLC
| Columbia and Cowlitz Railway Company | 1 |
CN
| Canadian National Railways | 3 |
COER
| Crab Orchard & Egyptian | 1 |
CRLE
| Coe Rail Incorporated | 1 |
CUOH
| Columbus and Ohio River Railroad Company | 8 |
FBOX
| TTX Company | 7 |
GTW
| Grand Trunk Western | 2 |
HS
| H and S Railroad Company | 4 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 1 |
ITFX
| INFINITY TRANSPORTATION III LLC | 3 |
KCS
| Kansas City Southern | 2 |
LRS
| Laurinburg and Southern | 5 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
MQT
| Marquette Rail | 7 |
MSE
| Mississippi Export Railroad Company | 1 |
NOKL
| Northwestern Oklahoma | 12 |
NS
| Norfolk Southern | 28 |
NWR
| Nashville & Western Railroad Corp. | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SP
| Southern Pacific | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 13 |
TOFX
| TTX Company - Box Cars | 32 |
TR
| Tomahawk Railway L.P. | 7 |
UP
| Union Pacific Railroad Company | 2 |
WC
| Wisconsin Central | 1 |
WRWK
| Providence & Worchester Railroad | 4 |
YKR
| York Rail | 1 |