AOK
| Arkansas-Oklahoma Railroad | 4 |
BNSF
| BNSF Railway | 3 |
COER
| Crab Orchard & Egyptian | 2 |
CRLE
| Coe Rail Incorporated | 4 |
DWC
| Canadian National Railways | 34 |
FLOX
| CIT Group/Capital Finance, Inc | 2 |
IBT
| International Bridge and Terminal Company | 2 |
KCS
| Kansas City Southern | 3 |
LW
| Louisville and Wadley Railway Company | 1 |
NOKL
| Northwestern Oklahoma | 6 |
NS
| Norfolk Southern | 1 |
SNC
| Saratoga & North Creek Railway | 1 |
TBOX
| TTX Company | 49 |
TR
| Tomahawk Railway L.P. | 1 |
WC
| Wisconsin Central | 3 |