BN
| Burlington Northern | 7 |
BNSF
| BNSF Railway | 27 |
CNW
| Chicago & Northwestern | 1 |
GMQX
| Granite Mountain Quarry | 2 |
GREX
| Georgetown Rail Equipment Company | 2 |
GVW
| GVW | 3 |
HZGX
| Herzog Contracting Corporation | 4 |
KCS
| Kansas City Southern | 8 |
KCSM
| Kansas City Southern De Mexico | 1 |
LMX
| LMX | 1 |
MP
| Missouri Pacific | 1 |
RG
| RG | 5 |
RKCX
| Knox Kershaw Incorporated | 2 |
RWCX
| RWC Incorporated | 2 |
SPSX
| Progress Rail Services Corp | 1 |
SRS
| Sperry Rail Service | 2 |
UP
| Union Pacific Railroad Company | 1 |