AOK
| Arkansas-Oklahoma Railroad | 1 |
BCOL
| Canadian National Railways | 7 |
CIBX
| CIT Group/Capital Finance, Inc | 4 |
CNA
| Canadian National Railways | 1 |
COER
| Crab Orchard & Egyptian | 4 |
CSX
| CSX Railroad | 2 |
FP
| Fordyce & Princeton Railroad Company | 4 |
GTW
| Grand Trunk Western | 2 |
HPJX
| Helm-Pacific Leasing | 3 |
HS
| H and S Railroad Company | 5 |
IBT
| International Bridge and Terminal Company | 5 |
IC
| Illinois Central | 4 |
KCS
| Kansas City Southern | 5 |
KCSM
| Kansas City Southern De Mexico | 2 |
KLRX
| KOCH RAIL LLC | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MP
| Missouri Pacific | 8 |
NADX
| General Electric Rail Services | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
NYC
| New York Central | 3 |
SP
| Southern Pacific | 1 |