CHTT
| Chicago Heights Terminal Transfer | 1 |
CLEX
| Cieco Corporation | 1 |
CMO
| Chicago St Paul Minneapolis & Omaha | 3 |
EXEX
| Commonwealth Edison Company | 2 |
FSR
| Fort Smith Railroad Company | 1 |
HZGX
| Herzog Contracting Corporation | 1 |
MP
| Missouri Pacific | 30 |
MWAX
| Martin Marietta Materials Incorporated | 9 |
SP
| Southern Pacific | 2 |