AOK
| Arkansas-Oklahoma Railroad | 1 |
CO
| Chesapeake & Ohio | 1 |
CSX
| CSX Railroad | 7 |
CTSX
| CTS Cement Manufacturing Company | 1 |
EAMX
| Everest Railcar Services, Inc | 1 |
GACX
| General American Marks Company | 1 |
GFCX
| Glens Falls Lehigh Cement Company | 2 |
NW
| Norfolk & Western | 4 |
RGCX
| Rio Grande Chemical LTD | 1 |
WW
| Winchester & Western | 2 |