4th Quarter and Full-Year 2011 Earnings Release

February 23, 2012
Time: 10:00 AM CST
(11:00 a.m. EST and 4:00 p.m. London) . The earnings release will be issued before the New York Stock Exchange opens that morning. The conference call will be webcast live at www.enscoplc.com. Interested parties also may listen to the call by dialing 1-866-524-3160 or, if calling internationally, 1-412-317-6760 and asking for the Ensco conference call. A replay of the conference call will be available by phone through 2 March 2012 by dialing 1-877-344-7529 or, if calling internationally, 1-412-317-0088 (conference ID 10009420).

Press Releases

15 May 2012 Ensco to Convert to Class A Ordinary Share Listing on the New York Stock Exchange

02 May 2012 Ensco plc Reports First Quarter 2012 Results

Investor Presentation

Fleet Status Report

Investor Relations Contacts

Sean P. O'Neill
Vice President–Investor Relations and Communications
713.430.4607

Michelle A. Anderson
Manager–Investor Relations and Branding
713.917.2324

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