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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the Securities
Exchange Act of 1934 (Amendment No.  )
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o   Preliminary Proxy Statement
o   Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o   Definitive Proxy Statement
þ   Definitive Additional Materials
o   Soliciting Material Pursuant to §240.14a-12
 
Anadarko Petroleum Corporation
 
(Name of Registrant as Specified In Its Charter)
 
 
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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*** Exercise Your Right to Vote ***
IMPORTANT NOTICE Regarding the Availability of Proxy Materials


ANADARKO PETROLEUM
CORPORATION

Meeting Information
     
Meeting Type:
  Annual
 
For holders as of:
  03/23/10
 
Date:  05/18/10
  Time: 8:00 A.M., CDT
Location:   The Woodlands Waterway Marriott Hotel
and Convention Center
1601 Lake Robbins Drive
The Woodlands, TX 77380
Directions: Directions to the 2010 Annual Meeting are available by calling The Woodlands Waterway Marriott Hotel and Convention Center at (281) 367-9797 or visiting its website at www.marriott.com

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1201 LAKE ROBBINS DRIVE
THE WOODLANDS, TX 77380
You are receiving this communication because you hold shares in the above named company.
This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
We encourage you to access and review all of the important information contained in the proxy materials before voting.
See the reverse side of this notice to obtain proxy materials and voting instructions.


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Before You Vote
How to Access the Proxy Materials
      

Proxy Materials Available to VIEW or RECEIVE:
NOTICE AND PROXY STATEMENT       ANNUAL REPORT
How to View Online:
Have the 12-Digit Control Number available (located on the following page) and visit: www.proxyvote.com.
How to Request and Receive a PAPER or E-MAIL Copy:
If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
         
 
  1) BY INTERNET:   www.proxyvote.com
 
  2) BY TELEPHONE:   1-800-579-1639
 
  3) BY E-MAIL*:   sendmaterial@proxyvote.com
*   If requesting materials by e-mail, please send a blank e-mail with the 12-Digit Control Number (located on the following page) in the subject line.
Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 4, 2010 to facilitate timely delivery.


How To Vote
Please Choose One of the Following Voting Methods

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Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the Annual Meeting, you will need to request a ballot to vote these shares.
Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the 12 Digit Control Number available and follow the instructions.
Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.


 


 

                           
  Voting Items
               
  THE BOARD OF DIRECTORS RECOMMENDS                
  A VOTE “FOR” ITEMS 1 AND 2.       THE BOARD OF DIRECTORS RECOMMENDS    
  1.   Election of Directors       A VOTE “AGAINST” ITEMS 3 AND 4.    
      Nominees:        3.    Stockholder Proposal - Amendment to    
 
 
  1a.   H. Paulett Eberhart           Non-Discrimination Policy.    
 
 
                       
 
 
  1b.   Preston M. Geren III        4.    Stockholder Proposal - Amendment to    
 
 
                  By-Laws: Reimbursement of Proxy Expenses.    
 
 
  1c.   James T. Hackett                
 
 
                       
  2.   Ratification of appointment of KPMG                
      LLP as independent auditors.                
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