ATSF
| Atchison Topeka & Santa Fe | 1 |
BN
| Burlington Northern | 4 |
BNSF
| BNSF Railway | 2 |
CNW
| Chicago & Northwestern | 1 |
GREX
| Georgetown Rail Equipment Company | 3 |
HZGX
| Herzog Contracting Corporation | 15 |
NCRC
| Nebraska Central | 1 |
SI
| Union Pacific Railroad Company (Spokane International) | 3 |
UP
| Union Pacific Railroad Company | 8 |
WAMX
| Webb Asset Management | 1 |