ATSF
| Atchison Topeka & Santa Fe | 1 |
BNSF
| BNSF Railway | 1 |
GCCX
| General American Marks Company | 2 |
HLMX
| Helm Financial Corporation | 1 |
IFRX
| Infinity Rail LLC | 1 |
MWAX
| Martin Marietta Materials Incorporated | 1 |
TILX
| Trinity Industries Leasing Company | 1 |
TXIX
| Texas Industries Incorporated | 3 |
TXUX
| TXU Electric | 1 |