CSX
| CSX Railroad | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
HATX
| Helm Financial Corporation | 3 |
MP
| Missouri Pacific | 1 |
PGR
| Progressive Rail, Inc | 1 |
SP
| Southern Pacific | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TPIX
| Tropicana Transportation Corp | 3 |
UP
| Union Pacific Railroad Company | 1 |