ATSF
| Atchison Topeka & Santa Fe | 5 |
BAP
| Butte Anaconda & Pacific | 1 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 1 |
CN
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 13 |
DGNO
| Dallas Garland & Northeastern | 1 |
RARW
| Rarus Railway Company | 2 |
SPSX
| Progress Rail Services Corp | 1 |