ALAB
| Alabama Railroad | 2 |
CR
| Conrail | 3 |
KCS
| Kansas City Southern | 1 |
KELX
| Kellogg Company | 9 |
MP
| Missouri Pacific | 16 |
MWCX
| Midwest Railcar Corporation | 1 |
NS
| Norfolk Southern | 1 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 3 |
UP
| Union Pacific Railroad Company | 2 |