BN
| Burlington Northern | 9 |
BNSF
| BNSF Railway | 1 |
KCLX
| Kansas City Power and Light Company | 5 |
MKT
| Missouri-Kansas-Texas | 1 |
MNNR
| Minnesota Commercial | 1 |
MP
| Missouri Pacific | 17 |
NP
| Northern Pacific | 1 |
NS
| Norfolk Southern | 10 |
OVEX
| Ohio Valley Electric Company | 1 |
SP
| Southern Pacific | 2 |