| 1 | UCLX | Union Chemical Carline, Inc. | added 7/1956; 10/1957-4/1970; eliminated 11/1973 | | NAKINA |
| 2 | UCLX | Vulcan Materials Co., Chemicals Division | added 11/1973; 1/1975-7/2005; eliminated 10/2005 | | NAKINA |
| 3 | UCLX | Basic Chemicals Co., LLC | added 1/2006; eliminated 4/2007 | | NAKINA |
| 4 | UCLX | Occidental Chemicals Corp. | added 4/2007 | | NAKINA |
| 5 | UCLX | Union Chemical Carline, Inc. | added 7/56; 10/57-4/70 | | NRHS |
| 6 | UCLX | Vulcan Materials Co., Chemicals Division | 1/75-7/2000 | | NRHS |
| 7 | UCLX | OCCIDENTAL CHEMICALS CORP. [BASIC CHEMICALS CO., LLC; VULCAN MATERIALS CO. CHEMICALS DIV.; UNION CHEMICAL CARLINE, INC.] | | | PWRC |
| 8 | UCLX | Vulcan Minerals | | | RSRV |
| 9 | UCLX | BASIC CHEMICALS COMPANY LLC | | | SCAC4 |
