ATSF
| Atchison Topeka & Santa Fe | 666 |
BAEX
| Andersons | 1 |
BN
| Burlington Northern | 19 |
BNSF
| BNSF Railway | 1612 |
CRYX
| Cryo-Trans Incorporated | 28 |
CSX
| CSX Railroad | 15 |
DRGW
| Denver & Rio Grande Western | 17 |
HCGX
| COMPASS MINERALS INTERNATIONAL INC | 1 |
MP
| Missouri Pacific | 6 |
MRL
| Montana Rail Link | 1 |
NYC
| New York Central | 4 |
SP
| Southern Pacific | 11 |
SSW
| St Louis Southwestern (Cotton Belt) | 19 |
UP
| Union Pacific Railroad Company | 24 |
WP
| Western Pacific | 1 |