| SC 13G/A | 2017-02-13 | WPT LLC | Westlake Chemical Partners LP | 14,112,230 | 52.2% | EDGAR |
| SC 13G/A | 2017-02-10 | Harvest Fund Advisors LLC | Westlake Chemical Partners LP | 1,983,230 | 13.8% | EDGAR |
| SC 13G/A | 2017-01-25 | OppenheimerFunds, Inc. | Westlake Chemical Partners LP | 3,335,980 | 23.2% | EDGAR |
| SC 13G/A | 2016-02-16 | BAMCO INC /NY/ | Westlake Chemical Partners LP | 537,950 | 3.7% | EDGAR |
| SC 13G/A | 2016-02-16 | BALYASNY ASSET MANAGEMENT LLC | Westlake Chemical Partners LP | - | 0.0% | EDGAR |
| SC 13G/A | 2016-02-12 | WPT LLC | Westlake Chemical Partners LP | 14,112,230 | 52.2% | EDGAR |
| SC 13G/A | 2016-02-09 | OppenheimerFunds, Inc. | Westlake Chemical Partners LP | 3,042,683 | 21.2% | EDGAR |
| SC 13G/A | 2016-02-09 | GOLDMAN SACHS ASSET MANAGEMENT, L.P. | Westlake Chemical Partners LP | 368,483 | 2.6% | EDGAR |
| SC 13G/A | 2016-02-05 | Harvest Fund Advisors LLC | Westlake Chemical Partners LP | 2,099,098 | 14.6% | EDGAR |
| SC 13G | 2016-01-07 | OppenheimerFunds, Inc. | Westlake Chemical Partners LP | 1,965,436 | 13.7% | EDGAR |
| SC 13G | 2015-05-21 | BALYASNY ASSET MANAGEMENT LLC | Westlake Chemical Partners LP | 338,255 | 2.4% | EDGAR |
| SC 13G | 2015-02-17 | BAMCO INC /NY/ | Westlake Chemical Partners LP | 869,698 | 6.0% | EDGAR |
| SC 13G | 2015-02-13 | GOLDMAN SACHS ASSET MANAGEMENT, L.P. | Westlake Chemical Partners LP | 969,428 | 6.7% | EDGAR |
| SC 13G | 2015-02-13 | WPT LLC | Westlake Chemical Partners LP | 14,112,230 | 52.2% | EDGAR |
| SC 13G | 2014-08-11 | Harvest Fund Advisors LLC | Westlake Chemical Partners LP | 2,273,369 | 17.6% | EDGAR |