Diamond Offshore Drilling (DODRW) DEFA14A Additional proxy soliciting materials

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant To Section 14 (a) of the

Securities Exchange Act of 1934

(Amendment No.     )

Filed by the registrant  x                             Filed by a party other than the registrant  ¨

Check the appropriate box:

¨ Preliminary proxy statement

¨ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2))

¨ Definitive proxy statement

x Definitive additional materials

¨ Soliciting material pursuant to § 240.14a-12.

Diamond Offshore Drilling, Inc.

(Name of Registrant as Specified in its Charter)

(Name of Person (s) Filing Proxy Statement, if other than the Registrant)

Payment of filing fee (check the appropriate box):

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¨	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.
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*** Exercise YourRight to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held on May 20, 2014

DIAMOND OFFSHORE DRILLING, INC.	Meeting Information Meeting Type: Annual Meeting For holders as of: March 25, 2014 Date: May 20, 2014        Time: 8:30 AM EDT Location:    Loews Corporation 667 Madison Avenue New York, New York 10065
	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 atwww.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.
DIAMOND OFFSHORE DRILLING, INC. 15415 KATY FREEWAY HOUSTON, TX 77094
	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:

  1. Annual Report    2. Notice & Proxy Statement

  How to View Online:

Have the information that is printed in the box marked by the arrow (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 information that is printed in the box marked by the arrow (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 06, 2014 to facilitate timely delivery.

—  How To Vote  —

Please Choose One of the Following Voting Methods

Vote In Person:Many shareholder 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 meeting, you will need to request a ballot to vote these shares.

Vote By Internet: To vote now by Internet, go towww.proxyvote.com. Have the information that is printed in the box marked by the arrow 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.

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Voting items
The Board of Directors recommends you vote FOR the following:
1.     Election of Directors
Nominees
01    James S. Tisch 02    Marc Edwards 03    John R. Bolton 04    Charles L. Fabrikant 05    Paul G. Gaffney II 06    Edward Grebow 07    Herbert C. Hofmann 08    Kenneth I. Siegel 09    Clifford M. Sobel 10    Andrew H. Tisch 11    Raymond S. Troubh	3      To approve, on an advisory basis, executive compensation. 4      To approve the Company’s amended and restated Incentive Compensation Plan for Executive Officers. 5      To approve the Company’s Equity Incentive Compensation Plan. The Board of Directors recommends you vote AGAINST the following proposal: 6      Shareholder proposal: board diversity. NOTE:Such other business as may properly come before the meeting or any adjournment thereof.
The Board of Directors recommends you vote FOR proposals 2, 3, 4 and 5. 2      Ratify the appointment of Deloitte & Touche LLP as the independent auditors of the Company for fiscal year 2014.

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