CIPX
| Ameren Energy Generating Company | 2 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 3 |
DJRX
| Joseph Transportation Incorporated | 1 |
GALX
| Georgia Power Company | 1 |
GAXX
| Gerdau Ameristeel US, Inc | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
LAKX
| City of Lakeland (Fla.) | 1 |
LN
| Louisville & Nashville | 1 |
MB
| Meridian & Bigbee | 1 |
NW
| Norfolk & Western | 2 |
PEFX
| Progress Energy Florida | 4 |
RWSX
| Scherer Electric Generating Facility (Ala.) | 1 |
SAN
| Sandersville | 1 |
SOU
| Southern | 1 |