| 1 | EBCX | Ethyl Corp. | added 4/1966; 10/1966-4/1970; eliminated 7/1970 | | NAKINA |
| 2 | EBCX | The E. Berghausen Chemical Co. | 1/1950-7/1954; eliminated 10/1954 | | NAKINA |
| 3 | EBCX | Carson Petroleum Co. (Cities Service Export Oil Co.) | 7/1935 | | NAKINA |
| 4 | EBCX | Cities Service Oil Co. | 7/1937-4/1938 | | NAKINA |
| 5 | EBCX | Carson Petroleum Co. | 7/1930-7/1932 | | NAKINA |
| 6 | EBCX | The E. Berghausen Chemical Co. | Jan-52 | | NRHS |
| 7 | EBCX | Ethyl Corp. | added 4/66; 10/66-4/70; eliminated 7/70 | | NRHS |
| 8 | EBCX | *CARSON PETROLEUM CO. | | | PWRC |
| 9 | EBCX | *CITIES SERVICE OIL CO. | | | PWRC |
| 10 | EBCX | *E. BERGHAUSEN CHEMICAL CO. | | | PWRC |
| 11 | EBCX | *ETHYL CORP. | | | PWRC |
