| 1 | BECX | FMC Corp. | eliminated 7/1993; 1/1994 (not listed); eliminated 10/1997; 7/2000 (not listed); added 10/2000; 7/2005 | | NAKINA |
| 2 | BECX | FMC Corp., Inorganic Chemicals Division | 7/1965 | | NAKINA |
| 3 | BECX | FMC Corp. | 10/1966 | | NAKINA |
| 4 | BECX | FMC Corp., Inorganic Chemicals Division | 4/1970-1/1980 | | NAKINA |
| 5 | BECX | FMC Corp., Inorganic Chemicals Division | added 7/1962; eliminated 1/1964 | | NAKINA |
| 6 | BECX | FMC Corp. | added 1/1964 | | NAKINA |
| 7 | BECX | Becco Chemical Division, Food Machinery and Chemical Corp. | added 4/1955; 10/1957-4/1961; eliminated 10/1961 | | NAKINA |
| 8 | BECX | Becco Chemical Division, FMC Corp. | added 10/1961; eliminated 7/1962 | | NAKINA |
| 9 | BECX | Buffalo Electro-Chemical Co., Inc. | 7/1937-7/1954; eliminated 4/1955 | | NAKINA |
| 10 | BECX | Buffalo Electro-Chemical Co. | 4/38-1/52; eliminated 4/55 | | NRHS |
| 11 | BECX | Becco Chemical Division, Food Machinery and Chemical Corp. | added 4/55; 10/57-4/61 | | NRHS |
| 12 | BECX | FMC Corp., Inorganic Chemicals Division | Jul-65 | | NRHS |
| 13 | BECX | FMC Corp. | Oct-66 | | NRHS |
| 14 | BECX | FMC Corp., Inorganic Chemicals Division | 4/70-1/80 | | NRHS |
| 15 | BECX | FMC Corp. | eliminated 7/93; 1/94; eliminated 10/97; 7/2000; added 10/2000 | | NRHS |
| 16 | BECX | *BEAUFORD EAST COAST RAILROAD | | | PWRC |
| 17 | BECX | +FMC CORP., INORGANIC CHEMICALS DIV. {BUFFALO ELECTRO-CHEMICAL CO. INC.; BECCO CHEMICAL DIV, FOOD MACHINERY & CHEMICAL CORP.] | | | PWRC |
| 18 | BECX | Beauford East Coast Railroad (FMC Corporation) | | | RSRV |
| 19 | BECX | FMC CORPORATION | | | SCAC4 |