WESTLAKE CORP — Director's Dealing 2013

Oct 7, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2013-09-30

Reporting Person: Ederington L. Benjamin (VP, General Counsel, Corp Secy)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-09-30	Restricted Stock Units	$	A	957	Acquired		Common Stock (957)	Direct
2013-09-30	Restricted Stock Units	$	A	2393	Acquired		Common Stock (2393)	Direct
2013-09-30	Restricted Stock Units	$	A	3350	Acquired		Common Stock (3350)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock.

F2: The restricted stock units will vest two years from the date of grant (September 30, 2015).

F3: The restricted stock units will vest three years from the date of grant (September 30, 2016).

F4: The restricted stock units will vest four years from the date of grant (September 30, 2017).