AEPX
| American Electric Power | 3 |
BLE
| Bessemer & Lake Erie | 1 |
BMRR
| Beech Mountain Railroad | 1 |
CSX
| CSX Railroad | 7 |
JTSX
| Joseph Transportation Incorporated | 1 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 2 |
SCWX
| South Carolina Public Service Authority | 1 |
SOCX
| BP Amoco Chemical Company BP Oil Division | 1 |
SOU
| Southern | 4 |
VAPX
| Virginia Power | 1 |