AOK
| Arkansas-Oklahoma Railroad | 2 |
BNSF
| BNSF Railway | 2 |
CW
| Colorado and Wyoming | 15 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
JTSX
| Joseph Transportation Incorporated | 3 |
MCEX
| Midwest Railcar Equipment Company | 1 |
MP
| Missouri Pacific | 2 |
NOKL
| Northwestern Oklahoma | 6 |
PEYX
| Transportation Technology Services Inc | 1 |
RDRX
| RDRX | 1 |
SP
| Southern Pacific | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 37 |
TPPX
| Thilmany LLC | 1 |
TTJX
| TTX Company-Bulkhead Flats | 1 |
TTPX
| TTX Company - Bulkhead Flats | 59 |
UP
| Union Pacific Railroad Company | 29 |