AOK
| Arkansas-Oklahoma Railroad | 3 |
BNSF
| BNSF Railway | 6 |
CP
| Canadian Pacific Railway | 2 |
DTTX
| TTX Company - Double Stack Cars | 25 |
FEC
| Florida East Coast | 4 |
GTW
| Grand Trunk Western | 4 |
ITFX
| INFINITY TRANSPORTATION III LLC | 1 |
KCSM
| Kansas City Southern De Mexico | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |