ATSF
| Atchison Topeka & Santa Fe | 652 |
BAEX
| Andersons | 1 |
BN
| Burlington Northern | 28 |
BNSF
| BNSF Railway | 1443 |
CRYX
| Cryo-Trans Incorporated | 181 |
CSX
| CSX Railroad | 63 |
DRGW
| Denver & Rio Grande Western | 35 |
GARX
| General American Marks Company | 5 |
GVSR
| Galveston Railroad L.P. | 2 |
HCGX
| COMPASS MINERALS INTERNATIONAL INC | 3 |
JRSX
| J.R. Simplot Company | 8 |
MP
| Missouri Pacific | 24 |
MRL
| Montana Rail Link | 1 |
NYC
| New York Central | 16 |
SCL
| Seaboard Coast Line | 1 |
SP
| Southern Pacific | 32 |
SSW
| St Louis Southwestern (Cotton Belt) | 42 |
TPIX
| Tropicana Transportation Corp | 2 |
UP
| Union Pacific Railroad Company | 55 |
WP
| Western Pacific | 2 |