AOK
| Arkansas-Oklahoma Railroad | 7 |
BCOL
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 6 |
ETTX
| TTX Company - Autoracks | 2 |
KCS
| Kansas City Southern | 1 |
NOKL
| Northwestern Oklahoma | 1 |
SOO
| Soo Line | 4 |
SP
| Southern Pacific | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TOAX
| TTX Company - Autoracks | 10 |