AOK
| Arkansas-Oklahoma Railroad | 15 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 20 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 97 |
CIBX
| CIT Group/Capital Finance, Inc | 2 |
CNA
| Canadian National Railways | 3 |
CP
| Canadian Pacific Railway | 200 |
CSX
| CSX Railroad | 79 |
GACX
| General American Marks Company | 84 |
KCS
| Kansas City Southern | 36 |
KCSM
| Kansas City Southern De Mexico | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 13 |
RRLX
| Rail Logistics, LC | 1 |
TR
| Tomahawk Railway L.P. | 72 |
WP
| Western Pacific | 2 |