[GRAPHIC OMITTED] Acergy

NEWS RELEASE

                    Acergy S.A. Share Buyback - April 8, 2008

London, England - April 8, 2008 - Acergy S.A. (NASDAQ NM: ACGY; Oslo Stock
Exchange: ACY) advises that it has today purchased an additional 475,600 of its
common shares at an average price of NOK 112.81 per share. The shares were
purchased in accordance with its share repurchase programme previously announced
on September 11, 2006.

The shares have been acquired on the Oslo Stock Exchange and were purchased in
the market according to the authority granted by the Board.

As of today's date Acergy has reissued 3,054,243 treasury shares. As a result of
this transaction and delivering treasury shares to satisfy options exercises,
Acergy S.A. holds directly 12,105,082 of its own shares, representing 6.21% of
the total outstanding shares, as well as indirectly holding 879,121 shares
representing 0.45% of the total outstanding shares.

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Acergy S.A. is a seabed-to-surface engineering and construction contractor for
the offshore oil and gas industry worldwide. We plan, design and deliver
complex, integrated projects in harsh and challenging environments. We operate
internationally as one group - globally aware and locally sensitive, sharing our
expertise and experience to create innovative solutions. We are more than
solution providers, we are solution partners - ready to make long-term
investments in our people, assets, know-how and relationships in support of our
clients.

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Contacts:
Karen Menzel
Tel: + 44 (0) 20 8210 5568
karen.menzel@acergy-group.com
www.acergy-group.com

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