NOTICE TO ALL PERSONS AND ENTITIES WHO HOLD OR BENEFICIALLY OWN COMMON STOCK OR OTHER SECURITIES OF HALLIBURTON COMPANY OF PROPOSED SETTLEMENT OF SHAREHOLDER DERIVATIVE ACTION AND OF SETTLEMENT HEARING

HALLIBURTON SECURITIES HOLDERS ARE HEREBY NOTIFIED THAT A PENDING SHAREHOLDER DERIVATIVE ACTION BROUGHT ON BEHALF OF HALLIBURTON COMPANY HAS BEEN SETTLED. THIS NOTICE IS NOT AN EXPRESSION OF ANY OPINION BY THE TEXAS COURT IN WHICH THE PROCEEDING IS PENDING AS TO THE MERITS OF CLAIMS OR DEFENSES ASSERTED IN THE ACTION. THE STATEMENTS CONTAINED IN THIS NOTICE DO NOT CONSTITUTE FINDINGS OF THE TEXAS COURT.

Summary information regarding the action and the settlement is as follows:

Name of Case

Date of Settlement

Hearing

Date Objections are

Due

Warner v. Lesar, et al., Cause No. 2011-09567(Harris Cnty Dist. Ct, 190th Jud. Dist., Texas)

Monday, October 1,

2012, 4:00 p.m.

Friday, August 31,

2012

Please note that the Court may, in its discretion, change the date and/or time of the Settlement

Hearing in the action without further notice to you.

The Court has entered a preliminary injunction (the full text of which is found in the Court's order preliminarily approving the settlement) barring and enjoining Halliburton's securities holders and Halliburton from taking certain actions relating to the claims and causes of action asserted in the action and the claims that will be released by the settlement agreement if the settlement is approved.

IF YOU WANT TO OBTAIN MORE INFORMATION REGARDING THE PENDING CASE (INCLUDING THE PETITION FILED IN THE ACTION), THE SETTLEMENT (INCLUDING A COPY OF THE SETTLEMENT AGREEMENT), YOUR RIGHTS UNDER THE SETTLEMENT, THE PRELIMINARY INJUNCTION OR ANY OTHER INFORMATION RELATING TO THE ACTION OR THE SETTLEMENT, YOU CAN REVIEW THE SETTLEMENT AGREEMENT FILED WITH THE COURT AT http://www.robbinsumeda.com/notices.htmlor AT http://www.halliburton.com. YOU CAN ALSO CONTACT THE PETITIONER'S COUNSEL BY TELEPHONE TOLL-FREE AT 1-800-350-6003.
PLEASE DO NOT CONTACT THE COURT ABOUT THE SETTLEMENT AGREEMENT.

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