    <SEC-DOCUMENT>0001262823-19-000018-index.html : 20190502
    <SEC-HEADER>0001262823-19-000018.hdr.sgml : 20190502
    <ACCEPTANCE-DATETIME>20190502073920
    ACCESSION NUMBER:		0001262823-19-000018
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		12
    CONFORMED PERIOD OF REPORT:	20190502
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20190502
    DATE AS OF CHANGE:		20190502

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WESTLAKE CHEMICAL CORP
    		CENTRAL INDEX KEY:			0001262823
    		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
    		IRS NUMBER:				760346924
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-32260
    		FILM NUMBER:		19789764

    	BUSINESS ADDRESS:
    		STREET 1:		2801 POST OAK BLVD
    		STREET 2:		SUITE 600
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77056
    		BUSINESS PHONE:		713-960-9111

    	MAIL ADDRESS:
    		STREET 1:		2801 POST OAK BLVD
    		STREET 2:		SUITE 600
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77056
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>a190331earningsrelease8k.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: a190331earningsrelease8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>ex991_190331earningsrelease.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: ex991_190331earningsrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>ex992investorpresentatio.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 3 - file: ex992investorpresentatio.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>ex992investorpresentatio001.jpg
    <TEXT>
    Document 4 - file: ex992investorpresentatio001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>ex992investorpresentatio002.jpg
    <TEXT>
    Document 5 - file: ex992investorpresentatio002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>ex992investorpresentatio003.jpg
    <TEXT>
    Document 6 - file: ex992investorpresentatio003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>ex992investorpresentatio004.jpg
    <TEXT>
    Document 7 - file: ex992investorpresentatio004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>ex992investorpresentatio005.jpg
    <TEXT>
    Document 8 - file: ex992investorpresentatio005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>ex992investorpresentatio006.jpg
    <TEXT>
    Document 9 - file: ex992investorpresentatio006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>ex992investorpresentatio007.jpg
    <TEXT>
    Document 10 - file: ex992investorpresentatio007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>ex992investorpresentatio008.jpg
    <TEXT>
    Document 11 - file: ex992investorpresentatio008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>ex992investorpresentatio009.jpg
    <TEXT>
    Document 12 - file: ex992investorpresentatio009.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>