AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 1 |
BCOL
| Canadian National Railways | 5 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 2 |
CBRY
| Copper Basin Railway | 1 |
CORP
| Central Oregon & Pacific | 1 |
CSX
| CSX Railroad | 8 |
FURX
| First Union Rail | 3 |
HLSC
| Hampton Railway Incorporated | 20 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 2 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 1 |
TR
| Tomahawk Railway L.P. | 3 |
TTZX
| TTX Company-Centerbeam Flats | 57 |
UP
| Union Pacific Railroad Company | 4 |