ACFX
| General Electric Rail Services | 5 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 36 |
CNW
| Chicago & Northwestern | 13 |
CRDX
| Chicago Freight Car Leasing Company | 4 |
DME
| Dakota, Minnesota and Eastern | 16 |
GVSR
| Galveston Railroad L.P. | 1 |
ICG
| Illinois Central Gulf | 1 |
MP
| Missouri Pacific | 2 |
NOKL
| Northwestern Oklahoma | 5 |
SMNX
| Solvay Minerals Incorporated | 3 |
SOO
| Soo Line | 2 |
SP
| Southern Pacific | 37 |
SRCX
| Sid Richardson Carbon Company | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 168 |
UP
| Union Pacific Railroad Company | 12 |
WP
| Western Pacific | 1 |