AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 29, 2001 Registration No. 333-81717 ================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _________________________ POST EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 __________________________ SCHLUMBERGER N.V. (SCHLUMBERGER LIMITED) (Exact name of registrant as specified in its charter) NETHERLANDS ANTILLES 52-0684746 (State or other jurisdiction (I.R.S. Employer of incorporation or organization) Identification No.) 153 EAST 53RD STREET, 57TH FLOOR NEW YORK, NEW YORK 10022-4624 42, RUE SAINT-DOMINIQUE PARIS, FRANCE 75007 PARKSTRAAT 83, THE HAGUE THE NETHERLANDS 2514 JG (Addresses of Principal Executive Offices) (Zip Codes) __________________________ CAMCO THRIFT PLAN (Full title of the plan) __________________________ James L. Gunderson, Esq. GENERAL COUNSEL AND SECRETARY SCHLUMBERGER LIMITED 153 EAST 53RD STREET, 57TH FLOOR NEW YORK, NEW YORK 10022-4624 (Name and Address of agent for service) (212) 350-9400 (Telephone number, including area code, of agent for service) ================================================================================

DEREGISTRATION OF UNSOLD SECURITIES Pursuant to Registration Statement No. 333-81717 on Form S-8 (the "Registration Statement"), Schlumberger N.V., a Netherlands Antilles corporation ("Schlumberger"), registered 500,000 shares of its common stock, par value $.01 per share ("Schlumberger Common Stock"), to be offered under the Camco Thrift Plan. In accordance with an undertaking made by Schlumberger in the Registration Statement to remove from registration, by means of a post-effective amendment, any of the securities which remain unsold at the termination of the offering, Schlumberger hereby deregisters all shares of Schlumberger Common Stock registered under the Registration Statement which remains unsold as of the date hereof and all participation interests in the Camco Thrift Plan.

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, State of New York, on June 29, 2001. SCHLUMBERGER N.V. (Schlumberger Limited) By: /s/ Jack Liu -------------------------------------- Jack Liu Executive Vice President and Chief Financial Officer Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons on June 29, 2001 in the capacities indicated. * * - ------------------------------------ ------------------------------------ D. Euan Baird William T. McCormick, Jr. Director, Chairman, President Director and Chief Executive Officer * * - ------------------------------------ ------------------------------------ Victor E. Grijalva Didier Primat Director, Vice Chairman Director /s/ Jack Liu * - ------------------------------------ ------------------------------------ Jack Liu Nicolas Seydoux Executive Vice President and Director Chief Financial Officer /s/ Jean-Marc Perraud * - ------------------------------------ ------------------------------------ Jean-Marc Perraud Linda G. Stuntz Controller and Director Chief Accounting Officer * * - ------------------------------------ ------------------------------------ John Deutch Sven Ullring Director Director * * - ------------------------------------ ------------------------------------ Yoshihiko Wakumoto Andre Levy-Lang Director Director * - ------------------------------------ ------------------------------------ John C. Mayo Don E. Ackerman Director Director *By: /s/ Ellen S. Summer --------------------------------- Ellen S. Summer Attorney-in-Fact, pursuant to Power of Attorney dated July 16, 1998 (filed as Exhibit 24 to Registration Statement on Form S-8 (Registration No. 333-62545))

Pursuant to the requirements of the Securities Act of 1933, the Plan Administrator has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, State of New York, on June 29, 2001. CAMCO THRIFT PLAN By: /s/ Jack Kluepfel ----------------------------------------- Name: Jack Kluepfel ------------------------------------ Title: Director of Employee Services -----------------------------------