AOK
| Arkansas-Oklahoma Railroad | 302 |
ATSF
| Atchison Topeka & Santa Fe | 104 |
CMO
| Chicago St Paul Minneapolis & Omaha | 22 |
CNA
| Canadian National Railways | 752 |
DTTX
| TTX Company - Double Stack Cars | 2 |
HCRC
| Hillsdale County Ry. Co., Inc. | 1 |
KCSM
| Kansas City Southern De Mexico | 14 |
NAFX
| General Electric Rail Services | 2 |
ONT
| Ontario Northland Railway | 1 |
QNSL
| Quebec, North Shore and Labrador | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 229 |
THRX
| Transportation Corporation of America | 1 |
TTEX
| TTX Company - Articulated Flat Cars (TOFC/COFC) | 1 |
TUGX
| Texas Utilities Mining Company | 1 |
UP
| Union Pacific Railroad Company | 118 |
WRWK
| Providence & Worchester Railroad | 265 |