CNW
| Chicago & Northwestern | 8 |
DRGW
| Denver & Rio Grande Western | 1 |
GVSR
| Galveston Railroad L.P. | 2 |
HATX
| Helm Financial Corporation | 3 |
HLMX
| Helm Financial Corporation | 7 |
HZGX
| Herzog Contracting Corporation | 23 |
SP
| Southern Pacific | 2 |
SPMW
| Southern Pacific Maintenance of Way | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
UP
| Union Pacific Railroad Company | 17 |