Disclaimer The views expressed in this presentation (the “Presentation”) represent the opinions of Arrowgrass Capital Partners LLP and/or certain affiliates (“Arrowgrass”) and the investment funds it manages that hold shares in Ensco plc (the “Company”). This Presentation is for informational purposes only, and it does not have regard to the specific investment objective, financial situation, suitability or particular need of any specific person who may receive the Presentation, and should not be taken as advice on the merits of any investment decision. The views expressed in the Presentation represent the opinions of Arrowgrass, and are based on publicly available information and Arrowgrass analyses. Certain financial information and data used in the Presentation have been derived or obtained from filings made with the Securities and Exchange Commission (“SEC”) by the Company or other companies that Arrowgrass considers comparable. Arrowgrass has not sought or obtained consent from any third party to use any statements or information indicated in the Presentation as having been obtained or derived from a third party. Any such statements or information should not be viewed as indicating the support of such third party for the views expressed in the Presentation. Information contained in the Presentation has not been independently verified by Arrowgrass, and Arrowgrass disclaims any and all liability as to the completeness or accuracy of the information and for any omissions of material facts. Arrowgrass disclaims any obligation to correct, update or revise the Presentation or to otherwise provide any additional materials. Neither Arrowgrass nor any of its affiliates makes any representation or warranty, express or implied, as to the accuracy, fairness or completeness of the information contained herein and the recipient agrees and acknowledges that it will not rely on any such information. Arrowgrass recognizes that the Company may possess confidential information that could lead it to disagree with Arrowgrass’s views and/or conclusions.Funds managed by Arrowgrass currently beneficially own, and/or have an economic interest in, shares of the Company. These funds are in the business of trading— buying and selling—securities. Arrowgrass may buy or sell or otherwise change the form or substance of any of its investments in any manner permitted by law and expressly disclaims any obligation to notify any recipient of the Presentation of any such changes. There may be developments in the future that cause funds managed by Arrowgrass to engage in transactions that change the beneficial and/or economic interest in the Company.The Presentation may contain forward-looking statements which reflect Arrowgrass’s views with respect to, among other things, future events and financial performance. Forward-looking statements are subject to various risks and uncertainties and assumptions. There can be no assurance that any idea or assumption herein is, or will be proven, correct. If one or more of the risks or uncertainties materialize, or if Arrowgrass’s underlying assumptions prove to be incorrect, the actual results may vary materially from outcomes indicated by these statements. Accordingly, forward-looking statements should not be regarded as a representation by Arrowgrass that the future plans, estimates or expectations contemplated will ever be achieved. Under no circumstances is the Presentation to be used or considered as an offer to sell or a solicitation of an offer to buy any security, nor does the Presentation constitute either an offer to sell or a solicitation of an offer to buy any interest in funds managed by Arrowgrass. Any investment in the Arrowgrass Funds is speculative and involves substantial risk, including the risk of losing all or substantially all of such investment. Arrowgrass UK is a Limited Liability Partnership registered in England and Wales (FCA Firm reference number 413647). Registered office: 3rd Floor, 10 Portman Square, Marylebone, London W1H 6AZ