AOK
| Arkansas-Oklahoma Railroad | 1 |
BCOL
| Canadian National Railways | 2 |
BNSF
| BNSF Railway | 2 |
CIBX
| CIT Group/Capital Finance, Inc | 11 |
COER
| Crab Orchard & Egyptian | 16 |
FP
| Fordyce & Princeton Railroad Company | 4 |
HPJX
| Helm-Pacific Leasing | 4 |
HS
| H and S Railroad Company | 5 |
IBT
| International Bridge and Terminal Company | 7 |
IC
| Illinois Central | 3 |
KCS
| Kansas City Southern | 35 |
KCSM
| Kansas City Southern De Mexico | 1 |
LRS
| Laurinburg and Southern | 1 |
LW
| Louisville and Wadley Railway Company | 6 |
MDW
| Minnesota Dakota and Western Railway Com | 7 |
MP
| Missouri Pacific | 5 |
MRL
| Montana Rail Link | 4 |
MSRC
| Kansas City Southern | 1 |
MWCX
| Midwest Railcar Corporation | 29 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 2 |
RRLX
| Rail Logistics, LC | 1 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 1 |
WRWK
| Providence & Worchester Railroad | 1 |