3 NO OFFER OR SOLICITATIONThis communication is neither an offer to buy, nor a solicitation of an offer to sell, subscribe for or buy any securities or the solicitation of any vote or approval in any jurisdiction pursuant to or in connection with the proposed transactions or otherwise, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in contravention of applicable law. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended, and otherwise in accordance with applicable law.ADDITIONAL INFORMATION AND WHERE TO FIND ITThe proposed transaction involving Schlumberger and the Company will be submitted to the Company’s stockholders for their consideration. In connection with the proposed transaction, Schlumberger will prepare a registration statement on Form S-4 that will include a proxy statement/prospectus for the Company’s stockholders to be filed with the Securities and Exchange Commission (“SEC”), and the Company will mail the proxy statement/prospectus to its stockholders and both the Company and Schlumberger will file other documents regarding the proposed transaction with the SEC. This communication is not intended to be, and is not, a substitute for such filings or for any other document that Schlumberger or the Company may file with the SEC in connection with the proposed transaction. SECURITY HOLDERS ARE URGED TO READ ALL RELEVANT DOCUMENTS FILED WITH THE SEC, INCLUDING THE REGISTRATION STATEMENT ON FORM S-4 AND THE PROXY STATEMENT/PROSPECTUS, CAREFULLY WHEN THEY BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. The registration statement, the proxy statement/prospectus and other relevant materials (when they become available) and any other documents filed or furnished by Schlumberger or the Company with the SEC may be obtained free of charge at the SEC’s web site at www.sec.gov. In addition, security holders will be able to obtain free copies of the registration statement and the proxy statement/prospectus from Schlumberger by going to its investor relations page on its corporate web site at www.slb.com and from the Company by going to its investor relations page on its corporate web site at www.c-a-m.com. Notice