BNSF
| BNSF Railway | 1 |
CAGY
| Columbus & Greenville Railway | 5 |
CMPX
| Compass Capitol Corporation | 1 |
CRIX
| Citicorp Railmark, Inc. | 1 |
GACX
| General American Marks Company | 1 |
OKKT
| Union Pacific Railroad Company | 1 |
RBMN
| Reading Blue Mountain & Northern | 1 |
SR
| Kansas City Southern | 5 |
WFRX
| WELLS FARGO RAIL CORPORATION | 1 |
WLPX
| Westlake Polymers Corporation | 1 |