BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CP
| Canadian Pacific Railway | 11 |
DWC
| Canadian National Railways | 3 |
LW
| Louisville and Wadley Railway Company | 1 |
MWCX
| Midwest Railcar Corporation | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
TBOX
| TTX Company | 28 |
TR
| Tomahawk Railway L.P. | 5 |
WC
| Wisconsin Central | 3 |