GATX
| General American Marks Company | 2 |
MHAX
| US Dept of Interior-Bureau of Mines Helium Field Operations | 2 |
MRL
| Montana Rail Link | 1 |
OCE
| Oregon California & Eastern | 1 |
SHPX
| American Railcar Leasing, LLC | 1 |
TILX
| Trinity Industries Leasing Company | 1 |
UTLX
| Union Tank Car Company | 1 |