ACFX
| General Electric Rail Services | 1 |
BNSF
| BNSF Railway | 2 |
GATX
| General American Marks Company | 17 |
MBLX
| Exxon Mobil Corporation | 1 |
NATX
| General Electric Rail Services | 2 |
PROX
| Procor Limited | 3 |
RUSX
| First Union Rail | 1 |
TILX
| Trinity Industries Leasing Company | 12 |
UTLX
| Union Tank Car Company | 4 |