AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BN
| Burlington Northern | 3 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 1 |
DSSX
| Detroit Salt Company, L.C. | 1 |
HLMX
| Helm Financial Corporation | 1 |
IC
| Illinois Central | 2 |
NW
| Norfolk & Western | 5 |
SOU
| Southern | 1 |
WC
| Wisconsin Central | 1 |
WSOR
| Wisconsin & Southern | 1 |