ATSF
| Atchison Topeka & Santa Fe | 22 |
BAEX
| Andersons | 1 |
BKTY
| Union Pacific Railroad Company | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 6 |
CSX
| CSX Railroad | 1 |
IATR
| Iowa Traction Railroad Company | 1 |
KCS
| Kansas City Southern | 3 |
MWCX
| Midwest Railcar Corporation | 1 |
RBOX
| Railbox Company | 2 |
SOU
| Southern | 1 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 1 |
UPP
| Union Pacific Passenger | 1 |