ATLT
| Austin Todd and Ladd Railroad Company | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BN
| Burlington Northern | 7 |
BNSF
| BNSF Railway | 1 |
CNW
| Chicago & Northwestern | 3 |
DJTX
| Joseph Transportation Incorporated | 1 |
FURX
| First Union Rail | 2 |
GLCX
| Great Lakes Carbon Corporation | 1 |
HGPX
| Harrison Gypsum Company | 1 |
MP
| Missouri Pacific | 4 |
MWCX
| Midwest Railcar Corporation | 3 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 1 |
SRIX
| Southwest Rail Industries Incorporated | 4 |
TCWR
| Twin Cities and Western | 1 |
UP
| Union Pacific Railroad Company | 9 |
WAMX
| Webb Asset Management | 2 |