ATSF
| Atchison Topeka & Santa Fe | 9 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 5 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CNW
| Chicago & Northwestern | 2 |
DRGW
| Denver & Rio Grande Western | 2 |
FXE
| Ferromex | 8 |
GN
| Great Northern | 1 |
GONX
| Railgon Company | 3 |
HZGX
| Herzog Contracting Corporation | 1 |
LNE
| Lehigh and New England Ry | 1 |
MP
| Missouri Pacific | 3 |
MWCX
| Midwest Railcar Corporation | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SP
| Southern Pacific | 5 |
SPMW
| Southern Pacific Maintenance of Way | 1 |
SPSX
| Progress Rail Services Corp | 1 |
TRLX
| Texas Railcar Leasing Company | 1 |
UP
| Union Pacific Railroad Company | 7 |