CSX
| CSX Railroad | 6 |
GACX
| General American Marks Company | 2 |
KCSM
| Kansas City Southern De Mexico | 7 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MP
| Missouri Pacific | 9 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
PSMX
| Esco Corporation | 1 |
SP
| Southern Pacific | 8 |
SSW
| St Louis Southwestern (Cotton Belt) | 13 |
UP
| Union Pacific Railroad Company | 1 |