AOK
| Arkansas-Oklahoma Railroad | 3 |
CMO
| Chicago St Paul Minneapolis & Omaha | 1 |
CN
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NS
| Norfolk Southern | 8 |
SP
| Southern Pacific | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
UP
| Union Pacific Railroad Company | 2 |