BNSF
| BNSF Railway | 1 |
CLOX
| Clark Refining and Marketing Incorporated | 1 |
CMHX
| CarMath Incorporated | 1 |
CR
| Conrail | 3 |
CSX
| CSX Railroad | 7 |
DKPX
| Duke Power | 1 |
GGPX
| General American Marks Company | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
NYC
| New York Central | 3 |
PPLX
| Pennsylvania Power and Light Company | 1 |
RJCC
| R.J. Corman Railroad/Kentucky Lines | 1 |
SOU
| Southern | 1 |
TIMX
| Trinity Industries Leasing Company | 1 |