ACFX
| General Electric Rail Services | 5 |
ADMX
| ADM Transportation Company | 1 |
AEX
| Andersons | 3 |
AGLF
| Knoxville & Holston River Railroad | 2 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 7 |
CC
| Chicago Central & Pacific | 12 |
CGCX
| Cargill Incorporated C.G.D. Division | 8 |
CLSX
| Cargill Incorporated Salt Division | 2 |
CN
| Canadian National Railways | 3 |
CNA
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 36 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 1 |
CRDX
| Chicago Freight Car Leasing Company | 1 |
CSX
| CSX Railroad | 46 |
DME
| Dakota, Minnesota and Eastern | 1 |
EEC
| East Erie Commercial Railroad | 1 |
FURX
| First Union Rail | 1 |
GCCX
| General American Marks Company | 4 |
GFSX
| General American Marks Company | 1 |
GTW
| Grand Trunk Western | 1 |
IAIS
| Iowa Interstate | 1 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 3 |
INTX
| Interstate Commodities Inc. | 1 |
MOCX
| THE MOSAIC COMPANY | 1 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 1 |
OFCX
| RESIDCO | 5 |
PENX
| Penford Products Company | 1 |
PLCX
| General Electric Rail Services | 1 |
SOO
| Soo Line | 2 |
SP
| Southern Pacific | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
UP
| Union Pacific Railroad Company | 2 |