AGR
| Alabama and Gulf Coast | 10 |
BNSF
| BNSF Railway | 4 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CMHX
| CarMath Incorporated | 1 |
CNW
| Chicago & Northwestern | 1 |
CSX
| CSX Railroad | 1 |
MRL
| Montana Rail Link | 1 |
NOKL
| Northwestern Oklahoma | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |