Exhibit 10.3

AMENDMENT NO. 1 TO THE
ENSCO 2005 SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN
(As Amended and Restated Effective January 1, 2005)

       THIS AMENDMENT No. 1, executed this 4th day of August, 2009, and effective the first day of October, 2009, by Ensco International Incorporated, having its principal office in Dallas, Texas (hereinafter referred to as the "Company").

WITNESSETH:

       WHEREAS, effective April 1, 1995, Energy Service Company, Inc. adopted the Energy Service Company, Inc. Select Executive Retirement Plan (the "Original SERP");

       WHEREAS, the name of the Company was changed to ENSCO International Incorporated;

       WHEREAS, the Company amended and restated the Original SERP, effective January 1, 1997, to (i) provide a discretionary profit sharing contribution, (ii) rename the Original SERP the "ENSCO Supplemental Executive Retirement Plan," and (iii) coordinate the operation of the Original SERP with the ENSCO Savings Plan;

       WHEREAS, the Pension and Welfare Benefits Administration of the Department of Labor issued final regulations establishing new standards for processing benefit claims of participants and beneficiaries under Section 8.2 of the Original SERP which were subsequently clarified by further guidance from the Pension and Welfare Benefits Administration (collectively the "Final Claims Procedure Regulations");

       WHEREAS, the Company adopted Amendment No. 1 to the amended and restated Original SERP, effective as of January 1, 2002, to revise Section 8.2 of the Original SERP to provide that the administrator of the Original SERP shall process benefit claims of participants and beneficiaries pursuant to the claims procedure specified in the summary plan description for the Original SERP which shall comply with the Final Claims Procedure Regulations, as may be amended from time to time;

       WHEREAS, the Company amended and restated the Original SERP, effective as of January 1, 2004;

       WHEREAS, the American Jobs Creation Act of 2004 (the "AJCA") enacted new section 409A of the Internal Revenue Code of 1986, as amended (the "Code"), which imposes new rules regarding the timing of elections and distributions under nonqualified deferred compensation plans effective for years beginning after December 31, 2004;

       WHEREAS, the Company determined to comply with the AJCA and new section 409A of the Code by freezing the Original SERP and adopting the ENSCO 2005 Supplemental Executive Retirement Plan (the "2005 SERP"), effective January 1, 2005;

       WHEREAS, the Board of Directors of the Company (the "Board"), upon recommendation of its Nominating, Governance and Compensation Committee (the "Committee"), approved Amendment No. 1 to the 2005 SERP during a regular meeting held on November 6, 2007;

       WHEREAS, the Board, upon recommendation of the Committee, approved Amendment No. 2 to the 2005 SERP during a regular meeting held on March 10, 2008;

       WHEREAS, the Board, upon recommendation of the Committee during its meeting held on November 3-4, 2008, approved the amendment and restatement of the 2005 SERP during a regular meeting held on November 4, 2008;

       WHEREAS, the Company adopted the amended and restated 2005 SERP, effective as of January 1, 2005, except as specifically provided otherwise to the contrary therein, in order to (i) facilitate compliance with the final Treasury regulations under section 409A of the Code, and (ii) incorporate the amendments to the 2005 SERP previously made by Amendment No. 1 and Amendment No. 2;

       WHEREAS, the Board, upon recommendation of the Committee during its regular meeting held on August 4, 2009, has approved this Amendment No. 1 to the 2005 SERP, as amended and restated effective January 1, 2005, during a regular meeting held on August 4, 2009; and

       WHEREAS, the Company now desires to adopt this Amendment No. 1 to the amended and restated 2005 SERP in order to amend Section 7.2 of the amended and restated 2005 SERP, effective October 1, 2009, with respect to the limitation on the portion of a participant's account that may be invested in the Company stock fund;

       NOW, THEREFORE, in consideration of the premises and the covenants herein contained, the Company hereby adopts the following Amendment No. 1 to the amended and restated 2005 SERP:

       Section 7.2 of the amended and restated 2005 SERP is hereby amended to read as follows:

        7.2       Investments.   If a trust is established as provided for in Section 7.1, earnings and/or losses of the trust attributable to amounts credited to a Participant's Account shall increase or, if applicable, decrease such Participant's Account for purposes of determining the Participant's Benefits payable hereunder. The Committee may determine from time to time to direct the investment manager appointed pursuant to any such trust to invest the balance of a Participant's Account in accordance with the wishes and written directions of that Par