AOK
| Arkansas-Oklahoma Railroad | 2 |
BLE
| Bessemer & Lake Erie | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 16 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CN
| Canadian National Railways | 2 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 3 |
CTRN
| Union Pacific Railroad Company | 1 |
GRW
| Gary Railway | 2 |
GTW
| Grand Trunk Western | 4 |
IANR
| Iowa Northern Ry | 1 |
ICE
| Iowa Chicago and Eastern | 1 |
KCS
| Kansas City Southern | 2 |
MBKX
| Mitsui Rail Capital | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MNNR
| Minnesota Commercial | 2 |
MP
| Missouri Pacific | 6 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 5 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 3 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 10 |