| 1 | NDYX | First Union Rail | added 10/1996; 7/2000-7/2005 | | NAKINA |
| 2 | NDYX | USL Capital Rail Services | added 4/1994; eliminated 10/1996 | | NAKINA |
| 3 | NDYX | U.S. Rail Services, Inc. | added 7/1988; 1/1994; eliminated 4/1994 | | NAKINA |
| 4 | NDYX | Sovran Leasing Corp. | added 4/1988; eliminated 7/1988 | | NAKINA |
| 5 | NDYX | Dresser Leasing Corp. | added 4/1977; 1/1980; eliminated 4/1988 | | NAKINA |
| 6 | NDYX | National Equipment Leasing Corp. | added 7/1969; 4/1970-1/1975; eliminated 4/1977 | | NAKINA |
| 7 | NDYX | National Equipment Leasing Corp. | added 7/69; 4/70-1/75 | | NRHS |
| 8 | NDYX | Dresser Leasing Corp. | 1/80; eliminated 4/88 | | NRHS |
| 9 | NDYX | Sovran Leasing Corp. | added 4/88; eliminated 7/88 | | NRHS |
| 10 | NDYX | U.S. Rail Services, Inc. | added 7/88; 1/94; eliminated 4/94 | | NRHS |
| 11 | NDYX | USL Capital Rail Services | added 4/94; eliminated 10/96 | | NRHS |
| 12 | NDYX | First Union Rail | added 10/96; 7/2000 | | NRHS |
| 13 | NDYX | *(RUSX) USL CAPITAL RAIL SERVICES [NELX] [US INDUSTRIAL CHEMICALS CO.] | | | PWRC |
| 14 | NDYX | +FIRST UNION RAIL [DRESSER LEASING CORP.; SOVRAN LEASING CORP.] | | | PWRC |
| 15 | NDYX | Dresser Leasing Corporation (First Union Rail) | | | RSRV |
