WESTLAKE CORP — Director's Dealing 2012

Dec 4, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2012-11-30

Reporting Person: Condon Donald Marion Jr (Sr VP, Corp Bus Dev)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-11-30	Common Stock	M	1295	$45.83	Acquired	22415	Direct
2012-11-30	Common Stock	S	1295	$72.62	Disposed	21120	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-11-30	Employee Option (right to buy)	$45.83	M	1295	Acquired	2021-02-18	Common Stock (1295)	Direct