BKTY
| Union Pacific Railroad Company | 3 |
CMHX
| CarMath Incorporated | 1 |
EEC
| East Erie Commercial Railroad | 1 |
FXE
| Ferromex | 1 |
HS
| H and S Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 1 |
KCS
| Kansas City Southern | 1 |
UP
| Union Pacific Railroad Company | 1 |