ATSF
| Atchison Topeka & Santa Fe | 2 |
BNSF
| BNSF Railway | 1 |
BR
| Buffalo and Pittsburgh | 1 |
CSX
| CSX Railroad | 4 |
DRGW
| Denver & Rio Grande Western | 1 |
GVSR
| Galveston Railroad L.P. | 1 |
HLMX
| Helm Financial Corporation | 1 |
HPJX
| Helm-Pacific Leasing | 12 |
HS
| H and S Railroad Company | 1 |
LNAC
| Chattahoochee Bay Railroad, LLC | 1 |
MP
| Missouri Pacific | 2 |
SP
| Southern Pacific | 7 |
SSW
| St Louis Southwestern (Cotton Belt) | 5 |
STE
| Stockton Terminal and Eastern RR | 5 |
UP
| Union Pacific Railroad Company | 1 |
WSOR
| Wisconsin & Southern | 6 |
YKR
| York Rail | 8 |