AA
| Ann Arbor | 2 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CNW
| Chicago & Northwestern | 2 |
CWRX
| CWR TRANSPORTATION CO. | 27 |
DME
| Dakota, Minnesota and Eastern | 1 |
DRGW
| Denver & Rio Grande Western | 2 |
FTSX
| Fairmont Tamper | 3 |
MP
| Missouri Pacific | 1 |
MPCX
| Michels Corporation | 1 |
RCPE
| Rapid City Pierre & Eastern Railroad | 3 |
RMSX
| Pandrol Jackson Incorporated | 20 |
SDIX
| Steel Dynamics, Inc | 4 |
SPSX
| Progress Rail Services Corp | 58 |
TCWR
| Twin Cities and Western | 1 |