AEX
| Andersons | 2 |
AOK
| Arkansas-Oklahoma Railroad | 5 |
ATSF
| Atchison Topeka & Santa Fe | 4 |
ATW
| Atlantic and Western | 2 |
BN
| Burlington Northern | 28 |
BNSF
| BNSF Railway | 29 |
CHTT
| Chicago Heights Terminal Transfer | 5 |
CITX
| CIT Group/Capital Finance, Inc | 3 |
CNW
| Chicago & Northwestern | 4 |
CR
| Conrail | 6 |
CS
| Colorado & Southern | 1 |
CSX
| CSX Railroad | 2 |
CTRN
| Union Pacific Railroad Company | 1 |
DJJX
| Joseph Transportation Incorporated | 12 |
DLRX
| General Electric Rail Services | 2 |
EJE
| Elgin Joliet and Eastern | 1 |
ESCX
| General American Marks Company | 1 |
FURX
| First Union Rail | 6 |
FXE
| Ferromex | 6 |
GGPX
| General American Marks Company | 1 |
GNTX
| TTX Company | 6 |
GONX
| Railgon Company | 5 |
GRW
| Gary Railway | 7 |
HPJX
| Helm-Pacific Leasing | 6 |
HZGX
| Herzog Contracting Corporation | 1 |
ITC
| Illinois Terminal Railroad | 2 |
LT
| Lake Terminal Railroad Company | 1 |
MAEX
| M A ENERGY RESOURCES LLC | 4 |
MILX
| General Electric Rail Services | 1 |
MKC
| McKeesport Connecting Railroad Company | 3 |
MP
| Missouri Pacific | 4 |
MQRX
| MACQUARIE RAIL, INC. | 4 |
MS
| Michigan Shore Railroad Incorporated | 1 |
MWCX
| Midwest Railcar Corporation | 2 |
NKC
| NKC | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 3 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 19 |
NW
| Norfolk & Western | 3 |
OVEX
| Ohio Valley Electric Company | 1 |
PNJX
| Trinity Rail Management | 1 |
SP
| Southern Pacific | 6 |
UP
| Union Pacific Railroad Company | 17 |
WCRC
| Washington Central | 1 |