ABEX
| Advanced BioEnergy | 2 |
AGR
| Alabama and Gulf Coast | 3 |
ATW
| Atlantic and Western | 55 |
BM
| Boston & Maine | 6 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CNA
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 2 |
CPAA
| Canadian Pacific Railway | 2 |
CSX
| CSX Railroad | 71 |
DME
| Dakota, Minnesota and Eastern | 9 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 16 |
IC
| Illinois Central | 57 |
ICG
| Illinois Central Gulf | 3 |
IFRX
| Infinity Rail LLC | 1 |
NS
| Norfolk Southern | 4 |
RJCC
| R.J. Corman Railroad/Kentucky Lines | 2 |
RPMX
| RPMG INC | 2 |
SLGG
| Progress Rail Services Corporation | 3 |
SNC
| Saratoga & North Creek Railway | 1 |
SOU
| Southern | 95 |
YARR
| Youngstown and Austintown Railroad | 1 |