BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CLSX
| Cargill Incorporated Salt Division | 3 |
CMEX
| Cemex Inc | 1 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 7 |
MMID
| Maryland Midland | 1 |
RGCX
| Rio Grande Chemical LTD | 2 |
RMIX
| Ready Mix Concrete Company | 2 |
SCL
| Seaboard Coast Line | 1 |
SDWX
| Cemex Inc | 2 |
UNPX
| Procor Limited | 1 |
WC
| Wisconsin Central | 1 |