For an Offer Price of NOK 15.17 per Share PARIS, December 30 /PRNewswire-FirstCall/ -- CGGVeritas (ISIN: 0000120164 - NYSE: CGV) announced today that it launched a mandatory offer (the "Offer") for the 38,903,024 shares of Wavefield Inseis ("Wavefield") (OSE:WAVE) (representing 30.1% of the share capital) that it does not own, as well as the 2,892,875 shares that might be created following the exercise of the existing stock options. CGGVeritas has received formal approval of its Offer document (the "Offer Document") from the Oslo Stock Exchange pursuant to Chapter 6 of the Norwegian Securities Trading Act. The Offer will be open from Tuesday, December 30, 2008 until Tuesday, January 27, 2009, 5:30 pm (CET). The Offer price, calculated pursuant to section 6-10 of the Norwegian Securities Trading Act, is NOK 15.17 for each Wavefield share, and will be paid in cash. The Offer Document, as approved by the Oslo Stock Exchange, is available on the CGGVeritas website (http://www.cggveritas.com/). About CGGVeritas CGGVeritas (http://www.cggveritas.com/) is a leading international pure-play geophysical company delivering a wide range of technologies, services and equipment through Sercel, to its broad base of customers mainly throughout the global oil and gas industry. CGGVeritas is listed on Euronext Paris SA (ISIN: 0000120164) and the New York Stock Exchange (in the form of American Depositary Shares, NYSE: CGV). Disclaimer This press release contains forward-looking statements, including, without limitation, statements about CGGVeritas ("the Company") plans, strategies and prospects and the combination with Wavefield Inseis ASA discussed herein. These forward-looking statements are subject to risks and uncertainties that may change at any time, and, therefore, the Company's actual results may differ materially from those that were expected. The Company based these forward-looking statements on its current assumptions, expectations and projections about future events. Although the Company believes that the expectations reflected in these forward-looking statements are reasonable, it is very difficult to predict the impact of known factors and it is impossible for us to anticipate all factors that could affect our proposed results. In particular there can be no assurance as to the consummation or timing of the acquisition or the realization of any synergies. All forward-looking statements are based upon information available to the Company as of the date of this document. Important factors that could cause actual results to differ materially from management's expectations are disclosed in the Company's periodic reports and registration statements filed with the SEC and the AMF. Investors are cautioned not to place undue reliance on such forward-looking statements. The Offer is made for the shares of Wavefield, a company organized under the laws of the Kingdom of Norway, and is subject to the laws of the Kingdom of Norway. The Offer is being made in reliance on the exemption from certain requirements of Regulation 14E of the U.S. Securities Exchange Act of 1934 provided by Rule 14d-1(c) thereunder. The Offer is subject to disclosure requirements and takeover laws and regulations of the Kingdom of Norway that may be quite different from those of the United States. The financial statements of Wavefield included in the Offer Document, have been prepared in accordance with International Financial Reporting Standards and are not comparable to the financial statements of United States companies. It may be difficult for investors to enforce their rights and any claim they may have arising under U.S. securities laws, since the Company is located in a foreign country, and some or all of its officers and directors may be residents of a foreign country. Investors may not be able to sue a foreign company or its officers or directors in a foreign court for violations of the U.S. securities laws. It may be difficult to compel a foreign company and its affiliates to subject themselves to a U.S. court's judgment. Neither the U.S. Securities and Exchange Commission (SEC) nor the securities commission of any state in the United States has approved or disapproved of the Offer, passed upon the merits or fairness of the Offer or passed upon the adequacy or accuracy of the disclosure in the Offer Document. Any representation to the contrary is a criminal offence in the United States. Investor Relations Contacts Paris: Christophe Barnini Tel: +33-1-64-47-38-10 E-Mail: Houston: Hovey Cox Tel: +1-(832)-351-8821 E-Mail: Press Contacts Paris Brunswick: Laurent Perpere / Jerome Biscay Telephone: +33-1-53-96-83-83 E-Mail: DATASOURCE: CGGVeritas CONTACT: Investor Relations Contacts: Paris: Christophe Barnini, Tel: +33-1-64-47-38-10, E-Mail: . Houston: Hovey Cox, Tel: +1-(832)-351-8821, E-Mail: . Press Contacts Paris: Brunswick: Laurent Perpere / Jerome Biscay, Telephone: +33-1-53-96-83-83, E-Mail:

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