BO
| Baltimore & Ohio | 4 |
CO
| Chesapeake & Ohio | 11 |
CRR
| Clinchfield | 1 |
CSPX
| Chesapeake Speciality Products | 2 |
CSX
| CSX Railroad | 21 |
DH
| Delaware & Hudson | 1 |
GSCX
| General American Marks Company | 1 |
HLMX
| Helm Financial Corporation | 1 |
ICRX
| Island Creek Corporation | 1 |
LN
| Louisville & Nashville | 9 |
PS
| Pittsburg and Shawmut Railroad Company | 1 |
SBD
| Seaboard System | 6 |
SPSX
| Progress Rail Services Corp | 2 |
URDX
| Arch of Kentucky Incorporated | 1 |
WM
| Western Maryland | 1 |