CMHX
| CarMath Incorporated | 3 |
IBT
| International Bridge and Terminal Company | 1 |
KCS
| Kansas City Southern | 2 |
KELX
| Kellogg Company | 1 |
MP
| Missouri Pacific | 8 |
MWCX
| Midwest Railcar Corporation | 2 |
NS
| Norfolk Southern | 1 |
SOU
| Southern | 1 |
UP
| Union Pacific Railroad Company | 9 |