Exhibit 99.1
 Acergy S.A. 2011 Reporting Dates
 
 London, England – November 30, 2010– Acergy S.A. (NASDAQ-GS: ACGY; Oslo Stock Exchange: ACY) (“the Company”) today announces its intention to publish its quarterly financial results for 2011 on following dates:
 
 Q4 2010 and Full Year 2010 Results
February 23, 2011Q1 2011 Results
May 11, 2011Q2 2011 Results
August 10, 2011Q3 2011 Results
November 2, 2011
 
 The 2011 Annual General Meeting of the Company will be held on Friday May 27, 2011.
 
 Following shareholder approval of the proposed Articles of Incorporation at the Combination Extraordinary General Meeting on November 9, 2010, the financial year starting on December 1, 2010 will end on December 31, 2011. Thereafter, the financial year shall begin on January 1 and end on December 31 each year.
 Please note that all future events may be subject to change.
 
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 Acergy S.A. is a seabed-to-surface engineering and construction contractor to the offshore oil and gas industry worldwide. We provide integrated services, and we plan, design and deliver complex projects in harsh and challenging environments.
 
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 Contact:
 Karen Menzel
 Acergy S.A.
 +44 (0)20 8210 5568
 karen.menzel@acergy-group.com
 www.acergy-group.com
 
 If you no longer wish to receive our press releases please contact: karen.menzel@acergy-group.com
  Forward-Looking Statements: Certain statements made in this announcement may include “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the US Securities Exchange Act of 1934.  These statements may be identified by the use of words like “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “forecast,” “project,” “will,” “should,” “seek,” and similar expressions.  These forward-looking statements include, but are not limited to, statements as to the intended reporting dates for the quarterly financial results for 2011 and the expected date of the 2011 Annual General Meeting. The forward-looking statements reflect our current views and assumptions and are subject to risks and uncertainties.  The following factors, and others which are discussed in our public filings and submissions with the U.S. Securities and Exchange Commission, are among those that may cause actual and future results and trends to differ materially from our forward-looking statements: actions by regulatory authorities or other third parties; unanticipated costs and difficulties related to the integration of Acergy S.A. and Subsea 7 Inc. and our ability to achieve benefits therefrom; unanticipated delays, costs and difficulties related to the combination transaction, including satisfaction of closing conditions; our ability to recover costs on significant projects; the general economic conditions and competition in the markets and businesses in which we operate; our relationship with significant clients; the outcome of legal proceedings or governmental enquiries; uncertainties inherent in operating internationally; the timely delivery of ships on order and the timely completion of ship conversion programmes; the impact of laws and regulations; and operating hazards, including spills and environmental damage.  Many of these factors are beyond our ability to control or predict.  Given these factors, you should not place undue reliance on the forward-looking statements.
  This communication does not constitute an offer to purchase, sell, or exchange or the solicitation of an offer to sell, purchase, or exchange any securities of Subsea 7 or Acergy.