BLE
| Bessemer & Lake Erie | 1 |
CAAX
| MHC Incorporated Subsidiary of ConAgra Incorporated | 1 |
CN
| Canadian National Railways | 8 |
CP
| Canadian Pacific Railway | 3 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 40 |
CTRN
| Union Pacific Railroad Company | 1 |
CWEX
| Midwest Generation LLC | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
FEPX
| FirstEnergy Generation Corp | 1 |
GCCX
| General American Marks Company | 15 |
IC
| Illinois Central | 1 |
MWAX
| Martin Marietta Materials Incorporated | 3 |
NS
| Norfolk Southern | 59 |
NW
| Norfolk & Western | 11 |
OFOX
| RESIDCO | 1 |
PSR
| Pittsburg and Shawmut Railroad Incorporated | 2 |
RBMN
| Reading Blue Mountain & Northern | 2 |
RMGX
| Andersons - Railgroup | 1 |
SOO
| Soo Line | 14 |
SOU
| Southern | 9 |
TILX
| Trinity Industries Leasing Company | 2 |
TRAX
| RailAmerica | 1 |
WC
| Wisconsin Central | 1 |