| 1 | WLPB | WAI LANA PRODUCTIONS LLC | | | SCAC4 |
| 2 | WLPC | WILLIAMS EXPRESS INC | | | SCAC4 |
| 3 | WLPK | WALP TRUCKING INC | | | SCAC4 |
| 4 | WLPN | WELLINGTON PLASTICS INC | | | SCAC4 |
| 5 | WLPO | WALPOLE INC | | | SCAC4 |
| 6 | WLPQ | WALTERS PONY EXPRESS | | | SCAC1 |
| 7 | WLPR | WILSON TRANSPORTATION INC | | | SCAC4 |
| 8 | WLPS | WOLTERS TRANSPORTATION | | | SCAC4 |
| 9 | WLPT | WESTLAND PLASTICS LTD | | | SCAC4 |
| 10 | WLPX | Westlake Polymers Corp. | 1/1994 (not listed); added 1/1999; 7/2000-7/2005 | | NAKINA |
| 11 | WLPX | Westlake Polymers Corp. | 1/94; added 1/99; 7/2000 | | NRHS |
| 12 | WLPX | WESTLAKE POLYMERS CORPORATION | | | PWRC |
| 13 | WLPX | West Lake Polymers | | | RSRV |
| 14 | WLPX | WESTLAKE POLYMERS CORPORATION | | | SCAC4 |
