WESTLAKE CORP — Director's Dealing 2012

Feb 23, 2012

SEC Form 4/A — Form 4/A

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2012-02-17

Reporting Person: Bender Mark Steven (Sr VP, CFO and Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-17	Common Stock	A	3274	$00.00	Acquired	39181	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-17	Employee Option (right to buy)	$60.105	A	8413	Acquired	2022-02-17	Common Stock (8413)	Direct

Footnotes

F1: The shares of restricted stock will vest on February 17, 2015

F2: The stock options are exercisable in three equal installments on February 17, 2013, 2014 and 2015.