ATSF
| Atchison Topeka & Santa Fe | 6 |
BN
| Burlington Northern | 4 |
BNSF
| BNSF Railway | 12 |
CNW
| Chicago & Northwestern | 3 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 1 |
CTRN
| Union Pacific Railroad Company | 1 |
GACX
| General American Marks Company | 1 |
MBKX
| Mitsui Rail Capital | 1 |
MP
| Missouri Pacific | 3 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 2 |
SMW
| St Marys Railway West LLC | 1 |
TR
| Tomahawk Railway L.P. | 2 |
UP
| Union Pacific Railroad Company | 5 |