ATSF
| Atchison Topeka & Santa Fe | 11 |
BN
| Burlington Northern | 5 |
BNSF
| BNSF Railway | 4 |
CTRN
| Union Pacific Railroad Company | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
EGSX
| Entergy Gulf States Incorporated | 1 |
NCUX
| CIT Group/Capital Finance, Inc | 1 |
OGEX
| Oklahoma Gas and Electric Company | 1 |
RTPX
| General Electric Rail Services | 1 |
TGNX
| NRG Energy | 11 |
TXUX
| TXU Electric | 13 |
UP
| Union Pacific Railroad Company | 1 |