ACL
| Atlantic Coast Line | 5 |
AECX
| Associated Electric Cooperative Incorporated (Mo.) | 1 |
AEPX
| American Electric Power | 1 |
AERX
| American Energy Resources Generating Com | 2 |
AOK
| Arkansas-Oklahoma Railroad | 2 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 1 |
BNSF
| BNSF Railway | 2 |
BO
| Baltimore & Ohio | 7 |
CAEG
| Coffeen and Western | 7 |
CN
| Canadian National Railways | 2 |
CO
| Chesapeake & Ohio | 4 |
COEH
| Conecuh Valley Railroad | 3 |
CR
| Conrail | 4 |
CRIX
| Citicorp Railmark, Inc. | 1 |
CSX
| CSX Railroad | 50 |
CTRN
| Union Pacific Railroad Company | 1 |
FPBX
| International Paper Corporation | 10 |
IAIS
| Iowa Interstate | 4 |
IC
| Illinois Central | 1 |
ICE
| Iowa Chicago and Eastern | 5 |
ICG
| Illinois Central Gulf | 6 |
ITCX
| International Technologies Corporation | 1 |
KIMX
| Kimmins Contracting Corp | 1 |
LXOH
| Knoxville & Holston River Railroad | 1 |
MARX
| MidAmerican Energy Corporation | 7 |
MP
| Missouri Pacific | 3 |
MWCX
| Midwest Railcar Corporation | 2 |
NORX
| Northern Indiana Public Service Company | 1 |
NRLX
| CIT Group/Capital Finance, Inc | 1 |
NS
| Norfolk Southern | 21 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 36 |
OVEX
| Ohio Valley Electric Company | 1 |
PAL
| Paducah & Louisville | 3 |
PC
| Penn Central | 1 |
PMRX
| Progress Metal Reclamation Company | 3 |
SBD
| Seaboard System | 9 |
SBFX
| Shapiro Brothers Inc. | 3 |
SBXX
| SBXX | 1 |
SEPX
| Southwestern Electric Power Company (La.) | 1 |
SMIX
| Structural Metals Incorporated | 3 |
SOU
| Southern | 14 |
SP
| Southern Pacific | 1 |
SRXX
| Smith Railroad Company | 7 |
TFM
| Kansas City Southern De Mexico | 3 |
TH
| TH | 1 |
TILX
| Trinity Industries Leasing Company | 1 |
TKEN
| Tennken Railroad Company Incorporated | 1 |
TM
| Texas-Mexican | 1 |
UFTX
| RESIDCO | 1 |
UMCX
| UMCX | 1 |
WC
| Wisconsin Central | 1 |
WGCR
| Wiregrass Central Railroad. Incorporated | 1 |
WWCX
| WWCX | 1 |
YVRR
| Yadkin Valley | 1 |