ATSF
| Atchison Topeka & Santa Fe | 2 |
BISX
| Brandenburg Industrial Service Co | 1 |
BN
| Burlington Northern | 11 |
BNSF
| BNSF Railway | 2 |
CMHX
| CarMath Incorporated | 1 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 2 |
DRGW
| Denver & Rio Grande Western | 2 |
FURX
| First Union Rail | 1 |
GBRX
| Greenbrier Leasing Corporation | 2 |
GN
| Great Northern | 1 |
GPWX
| Georgia-Pacific Corp | 3 |
HZGX
| Herzog Contracting Corporation | 2 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 2 |
MRL
| Montana Rail Link | 2 |
NP
| Northern Pacific | 3 |
RFRX
| Rick Franklin Corporation | 2 |
SP
| Southern Pacific | 1 |
UP
| Union Pacific Railroad Company | 1 |
WPRR
| Willamette and Pacific | 11 |