AEX
| Andersons | 3 |
BLE
| Bessemer & Lake Erie | 3 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
BO
| Baltimore & Ohio | 2 |
CBQ
| Chicago Burlington & Quincy | 2 |
CRR
| Clinchfield | 1 |
CSX
| CSX Railroad | 4 |
FEC
| Florida East Coast | 1 |
GLIX
| GLIX | 1 |
GN
| Great Northern | 1 |
HLMX
| Helm Financial Corporation | 2 |
KGLX
| Commonwealth Edison Company | 2 |
LN
| Louisville & Nashville | 2 |
MB
| Meridian & Bigbee | 1 |
MMID
| Maryland Midland | 1 |
MP
| Missouri Pacific | 3 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 2 |
NYC
| New York Central | 4 |
PC
| Penn Central | 3 |
SPSX
| Progress Rail Services Corp | 1 |
TRAX
| RailAmerica | 1 |
UP
| Union Pacific Railroad Company | 1 |
WE
| Wheeling & Lake Erie | 4 |
WM
| Western Maryland | 2 |