ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
BNSF
| BNSF Railway | 1 |
CUOH
| Columbus and Ohio River Railroad Company | 4 |
DCLR
| Delaware Coast Line RR Co | 2 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
SOU
| Southern | 1 |