CSX
| CSX Railroad | 17 |
FURX
| First Union Rail | 1 |
GACX
| General American Marks Company | 2 |
HWCX
| Halliburton Company | 1 |
MRMX
| Midwest Railcar Corporation | 1 |
NW
| Norfolk & Western | 3 |
PMRX
| Progress Metal Reclamation Company | 2 |
RGCX
| Rio Grande Chemical LTD | 1 |
SDWX
| Cemex Inc | 1 |
WWUX
| Unimin Corporation | 2 |