| 1 | HLTX | INEOS Olefins & Polymers USA, a Division of INEOS USA LLC | added 7/2008 | | NAKINA |
| 2 | HLTX | B P Solvay Polyethylene North America | added 4/2004; 7/2005; eliminated 7/2008 | | NAKINA |
| 3 | HLTX | BP Amoco Chemical Co. | added 4/2002; eliminated 4/2004 | | NAKINA |
| 4 | HLTX | *BP SOLVAY POLYETHYLENE NORTH AMERICA {BP AMOCO; AMOCO OIL COMPANY] | | | PWRC |
| 5 | HLTX | +INEOS OLEFINS & POLYMERS USA, DIV. INEOS USA LLC | | | PWRC |
| 6 | HLTX | Amoco Oil | | | RSRV |
| 7 | HLTX | INEOS OLEFINS & POLYMERS USA A DIVI | | | SCAC4 |
