| 1 | TXPX | Texas Petrochemicals Corp. | added 10/1985; 1/1994; eliminated 10/1998; 7/2000 (not listed) | | NAKINA |
| 2 | TXPX | Texas Petrochemicals Corp. | 1/94; eliminated 10/98; 7/2000 | | NRHS |
| 3 | TXPX | TEXAS PETROCHEMICALS CORPORATION | | | PWRC |
| 4 | TXPX | Texas Petrochemicals Corporation | | | RSRV |