AOK
| Arkansas-Oklahoma Railroad | 15 |
ATW
| Atlantic and Western | 1 |
BNSF
| BNSF Railway | 153 |
BRAN
| Brandon Rail | 7 |
CP
| Canadian Pacific Railway | 13 |
CSX
| CSX Railroad | 2 |
DTTX
| TTX Company - Double Stack Cars | 423 |
FEC
| Florida East Coast | 65 |
GTW
| Grand Trunk Western | 9 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 5 |
NOKL
| Northwestern Oklahoma | 13 |
SFLC
| BNSF Railway | 11 |
UCRY
| Utah Central | 22 |
WRWK
| Providence & Worchester Railroad | 8 |