BMZ
| Boston and Maine Corp |
|
0
|
3
| BMZ |
BNZ
| Burlington Northern and Santa Fe Railway |
|
0
|
5
| BNZ |
CRMU
| Norfolk Southern Railway Company |
|
0
|
3
| CRMU |
CSXU
| CSX Transportation Incorporated |
|
0
|
10
| CSXU |
ENSZ
| Norfolk Southern Railway Company |
|
0
|
1
| ENSZ |
HUBU
| BNSF-Hub Group |
|
0
|
2
| HUBU |
LSFZ
| Burlington Northern and Santa Fe Railway Company |
|
0
|
3
| LSFZ |
NSPZ
| Norfolk Southern Railway Company |
|
0
|
1
| NSPZ |
NSZ
| Norfolk Southern Railway Company |
|
0
|
1
| NSZ |
NYCZ
| New York Central |
|
0
|
2
| NYCZ |
SFTZ
| Santa Fe |
|
0
|
2
| SFTZ |
SOUZ
| Norfolk Southern Railway Company |
|
0
|
1
| SOUZ |
SPLZ
| Southern Pacific |
|
0
|
1
| SPLZ |
TCSZ
| Triple Crown Services Company |
|
0
|
1
| TCSZ |
TDIU
| Thoroughbred Direct |
|
0
|
2
| TDIU |