BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 2 |
CR
| Conrail | 2 |
CRIX
| Citicorp Railmark, Inc. | 2 |
CSX
| CSX Railroad | 1 |
EAMX
| Everest Railcar Services, Inc | 1 |
GONX
| Railgon Company | 1 |
MP
| Missouri Pacific | 1 |
NS
| Norfolk Southern | 13 |
PPLX
| Pennsylvania Power and Light Company | 3 |