AKMD
| Arkansas Midland Railroad Company | 1 |
AOK
| Arkansas-Oklahoma Railroad | 3 |
BNSF
| BNSF Railway | 2 |
CN
| Canadian National Railways | 3 |
CRLE
| Coe Rail Incorporated | 3 |
DWC
| Canadian National Railways | 1 |
FURX
| First Union Rail | 1 |
HKRX
| HKRX | 1 |
HLSC
| Hampton Railway Incorporated | 1 |
LRWN
| Little Rock & Western | 1 |
NOKL
| Northwestern Oklahoma | 9 |
NS
| Norfolk Southern | 2 |
SMW
| St Marys Railway West LLC | 1 |
TR
| Tomahawk Railway L.P. | 5 |
TTPX
| TTX Company - Bulkhead Flats | 2 |
TTZX
| TTX Company-Centerbeam Flats | 39 |
UP
| Union Pacific Railroad Company | 7 |
WRWK
| Providence & Worchester Railroad | 3 |