AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BN
| Burlington Northern | 5 |
BNSF
| BNSF Railway | 11 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
DGNO
| Dallas Garland & Northeastern | 1 |
DJJX
| Joseph Transportation Incorporated | 1 |
ESCX
| General American Marks Company | 1 |
FXE
| Ferromex | 1 |
GNTX
| TTX Company | 3 |
GONX
| Railgon Company | 4 |
GRDA
| GRDA | 1 |
GRDX
| Grand River Dam Authority (Okla.) | 24 |
GSSX
| Gopher State Scrap and Metal | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
IHB
| Indiana Harbor Belt | 1 |
JTSX
| Joseph Transportation Incorporated | 3 |
MWCX
| Midwest Railcar Corporation | 1 |
NDYX
| First Union Rail | 3 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
SCRF
| South Carolina Central | 4 |
SPSX
| Progress Rail Services Corp | 4 |
TCTX
| Tube City Incorporated | 1 |
TGNX
| NRG Energy | 1 |
UP
| Union Pacific Railroad Company | 2 |