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Guarantee Of Registered Securities
9 Months Ended
Sep. 30, 2011
Guarantee Of Registered Securities [Abstract] 
Guarantee Of Registered Securities
Note 17 - Guarantee of Registered Securities
 
    In connection with the Merger, on May 31, 2011, Ensco plc and Pride entered into a supplemental indenture to the indenture dated as of July 1, 2004 between Pride and the Bank of New York Mellon, as indenture trustee, providing for, among other matters, the full and unconditional guarantee by Ensco plc of Pride's 8.50% senior notes due 2019, 6.875% senior notes due 2020 and 7.875% senior notes due 2040, which had an aggregate outstanding principal balance as of September 30, 2011 of $1.7 billion.  The Ensco plc guarantee provides for the unconditional and irrevocable guarantee of the prompt payment, when due, of any amount owed to the holders of the Pride Notes.
 
    Ensco plc is also a full and unconditional guarantor of the 7.20% Debentures due 2027 issued by Ensco Delaware in November 1997, which had an aggregate outstanding principal balance of $150.0 million as of September 30, 2011.
 
All guarantees are unsecured obligations of Ensco plc ranking equal in right of payment with all of its existing and future unsecured and unsubordinated indebtedness.
 
    The following tables present the condensed consolidating statements of income for the three-month and nine-month periods ended September 30, 2011 and 2010; the condensed consolidating balance sheets as of September 30, 2011 and December 31, 2010; and the condensed consolidating statements of cash flows for the nine-month periods ended September 30, 2011 and 2010, in accordance with Rule 3-10 of Regulation S-X.  The condensed consolidating financial statements for the three-month and nine-month periods ended September 30, 2011 include the results of Pride from the Merger Date.