CNW
| Chicago & Northwestern | 3 |
CRDX
| Chicago Freight Car Leasing Company | 2 |
FRDN
| H and S Railroad Company Incorporated | 1 |
GN
| Great Northern | 1 |
MKT
| Missouri-Kansas-Texas | 2 |
MKTT
| Union Pacific Railroad Company | 1 |
MP
| Missouri Pacific | 4 |
NAHX
| General Electric Rail Services | 1 |