CSS
| Chicago South Shore And South Bend | 4 |
CSX
| CSX Railroad | 9 |
GRW
| Gary Railway | 1 |
IC
| Illinois Central | 2 |
ICE
| Iowa Chicago and Eastern | 1 |
IHB
| Indiana Harbor Belt | 6 |
KCS
| Kansas City Southern | 8 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 2 |
WE
| Wheeling & Lake Erie | 1 |