| 1 | ABCX | Tennessee Valley Authority | 1/1994 | | NAKINA |
| 2 | ABCX | Falcon Coal Co. | added 10/1978; 1/1980-1/1985; eliminated 10/1985 | | NAKINA |
| 3 | ABCX | Merchants Despatch Transportation Corp | added 7/1966; 10/1966-4/1970; eliminated 1/1973 | | NAKINA |
| 4 | ABCX | American Bitumuls Co. | 1/1943-4/1961 (not listed) | | NAKINA |
| 5 | ABCX | American Bitumuls Co. | 1/52-4/61 | | NRHS |
| 6 | ABCX | Merchants Despatch Transportation Corp | added 7/66; 10/66-4/70; eliminated 1/73 | | NRHS |
| 7 | ABCX | Falcon Coal Co. | added 10/78; 1/80 | | NRHS |
| 8 | ABCX | Tennessee Valley Authority | Jan-94 | | NRHS |
| 9 | ABCX | *AMERICAN BITUMULS CO. | | | PWRC |
| 10 | ABCX | *MERCHANTS DISPATCH TRANSPORTATION CORP. | | | PWRC |
| 11 | ABCX | *FALCON COAL CO. | | | PWRC |
| 12 | ABCX | *(TVAX) TENNESSEE VALLEY AUTHORITY | | | PWRC |
| 13 | ABCX | *ABC RAILWAY, INC. | | | PWRC |
| 14 | ABCX | American Bitumuls (Tennessee Valley Authority) | | | RSRV |
| 15 | ABCX | ABC RECYCLING INC | | | SCAC4 |
