CO
| Chesapeake & Ohio | 1 |
GSMR
| Great Smoky Mountains | 1 |
IESX
| Alliant Energy | 1 |
MTIX
| MIRANT ENERGY TRADING LLC | 1 |
NW
| Norfolk & Western | 1 |
SOU
| Southern | 1 |
TILX
| Trinity Industries Leasing Company | 2 |
VULX
| Vulcan Materials | 3 |
WPGX
| Western Paving Construction Company | 3 |