UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 AMENDMENT NO. 1 COMPAGNIE GENERALE DE GEOPHYSIQUE ------------------------------------------------------------------------------ (Name of Issuer) ORDINARY SHARES OF NOMINAL VALUE TWO EUROS EACH ------------------------------------------------------------------------------ (Title of Class of Securities) [NONE]** -------------------------------------------------------------------- (CUSIP Number) STEVEN J. STEINMAN, ESQ. FRIED, FRANK, HARRIS, SHRIVER & JACOBSON ONE NEW YORK PLAZA NEW YORK, NEW YORK 10004 (212) 859-8000 ------------------------------------------------------------------------------ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) DECEMBER 13, 2001 -------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of ss. ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box [ ]. NOTE: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See ss.240.13d-7 for other parties to whom copies are to be sent. *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). ----------------------------- ** The CUSIP Number for the American Depositary Shares, each representing one fifth of one Ordinary Share of nominal value two euros each, is 204386106. 13D CUSIP No. None Page 2 of 9 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS ENERGY FUND II GP, LLC 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [x] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE NUMBER OF 7 SOLE VOTING POWER SHARES 1,777,071 BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 1,777,071 10 SHARED DISPOSITIVE POWER 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,777,071 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ] EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 15.21% 14 TYPE OF REPORTING PERSON OO 13D CUSIP No. None Page 3 of 9 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS BEACON ENERGY INVESTORS II, LP 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [x] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE NUMBER OF 7 SOLE VOTING POWER SHARES 1,777,071 BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 1,777,071 10 SHARED DISPOSITIVE POWER 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,777,071 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ] EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 15.21% 14 TYPE OF REPORTING PERSON OO 13D CUSIP No. None Page 4 of 9 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS THE BEACON GROUP ENERGY INVESTMENT II, L.P. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [x] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE NUMBER OF 7 SOLE VOTING POWER SHARES 1,748,648 BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 1,748,648 10 SHARED DISPOSITIVE POWER 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,748,648 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ] EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 14.97% 14 TYPE OF REPORTING PERSON PN 13D CUSIP No. None Page 5 of 9 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS CGG INVESTORS LLC 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [x] (b) [ ] 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE NUMBER OF 7 SOLE VOTING POWER SHARES 1,748,648 BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 0 REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 1,748,648 10 SHARED DISPOSITIVE POWER 0 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,748,648 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ] EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 14.97% 14 TYPE OF REPORTING PERSON OO 13D CUSIP No. None Page 6 of 9 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS GF LTD. TRANSACTION PARTNERSHIP, L.P. 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [x] 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE NUMBER OF 7 SOLE VOTING POWER SHARES 28,423 BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 0 REPORTING 9 SOLE DISPOSITIVE POWER PERSON WITH 28,423 10 SHARED DISPOSITIVE POWER 0 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 28,423 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) [ ] EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) .24% 14 TYPE OF REPORTING PERSON PN This Statement on Schedule 13D, relating to the Ordinary Shares of nominal value two euros each (the "Ordinary Shares") of Compagnie Generale de Geophysique, a company organized under the laws of the Republic of France (the "Issuer"). amends the Schedule 13D filed on February 4, 2000 by and on behalf of Energy Fund II GP, LLC, Beacon Energy Investors II, L.P., The Beacon Group Energy Investment Fund II, L.P., CGG Investors LLC, and GF Ltd. Transaction Partnership, L.P. (collectively, the "Reporting Persons"). ITEM 1. SECURITY AND ISSUER. Unchanged. ITEM 2. IDENTITY AND BACKGROUND. Unchanged. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION. Unchanged. ITEM 4. PURPOSE OF THE TRANSACTION. Unchanged. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER. Item 5 is amended in its entirety as follows: (a) The aggregate number and percentage of the Ordinary Shares beneficially owned by each of the Reporting Persons are set forth on the cover pages of this Statement on Schedule 13D, and such information is incorporated herein by reference. (b) The number of Ordinary Shares as to which there is sole power to vote or to direct the vote, sole power to dispose or to direct the disposition, or shared power to dispose or direct the disposition for the Reporting Persons is set forth on the cover pages of this Statement on Schedule 13D, and such information is incorporated herein by reference. Pursuant to the transactions described in Item 5(c) below, (i) the 1,777,071 Ordinary Shares beneficially owned by Energy Fund II GP, LLC and Beacon Energy Investors II, LP represent 20.6 percent of the voting rights of the Issuer; (ii) the 1,748,648 Ordinary Shares beneficially owned by The Beacon Group Energy Investment Fund II, L.P. and CGG Investors LLC represent 20.3 percent of the voting rights of the Issuer; and (iii) the 28,423 Ordinary Shares beneficially owned by GF Ltd. Transaction Partnership, L.P. represent .3 percent of the voting rights of the Issuer. (c) The Issuer's Articles of Association provide that a double voting right is allocated to all registered and fully paid-up Ordinary Shares registered in the name of the same holder for at least two years. Pursuant to this provision, on December 13, 2001, the Ordinary Shares owned by the Reporting Persons were allocated double voting rights. Additionally, on October 7, 2002, the Issuer informed the Reporting Persons that due to the lack of providing notice to the Issuer within fifteen days of crossing the 16 percent, 18 percent, and 20 percent threshold, the Reporting Persons had lost a total of 760,742 voting rights. The effect of the double voting right grant and the failure to notify the Issuer within fifteen days was to (i) increase the voting rights of the 1,777,071 Ordinary Shares beneficially owned by Energy Fund II GP, LLC, and Beacon Energy Investors II, LP to 20.6 percent of the voting rights of the Issuer; (ii) increase the voting rights of the 1,748,648 Ordinary Shares beneficially owned by The Beacon Group Energy Investment Fund II, L.P. and CGG Investors LLC to 20.3 percent of the voting rights of the Issuer; and (iii) increase the voting rights of the 28,423 Ordinary Shares beneficially owned by GF Ltd. Transaction Partnership, L.P. to .3 percent of the voting rights of the Issuer. (d) The investors in The Beacon Group Energy Investment Fund II, L.P. and GF Ltd. Transaction Partnership, L.P. have the right to receive dividends from, and the proceeds from the sale of, the respective Ordinary Shares reported by such persons on the cover pages of this Statement on Schedule 13D. No such investor has such right with respect to more than 5% of the Ordinary Shares. (e) Not applicable. ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE ISSUER. Unchanged. ITEM 7. MATERIAL TO BE FILED AS EXHIBITS. Item 7 is amended by adding the following: Exhibit 5 -- Agreement of Joint Filing SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: October 28, 2002 ENERGY FUND II GP, LLC By: /s/ John MacWilliams -------------------------------------------- Authorized Signatory BEACON ENERGY INVESTORS II, LP By: Energy Fund II GP, LLC By: /s/ John MacWilliams --------------------------------------- Authorized Signatory THE BEACON GROUP ENERGY INVESTMENT FUND II, L.P. By: Beacon Energy Investors II, LP By: Energy Fund II GP, LLC By: /s/ John MacWilliams ---------------------------------- Authorized Signatory CGG INVESTORS LLC By: The Beacon Group Energy Investment Fund II, L.P. By: Beacon Energy Investors II, LP By: Energy Fund II GP, LLC By: /s/ John MacWilliams ----------------------------- Authorized Signatory GF LTD. TRANSACTION PARTNERSHIP, L.P. By: Beacon Energy Investors II, LP By: Energy Fund II GP, LLC By: /s/ John MacWilliams ---------------------------------- Authorized Signatory SCHEDULE I STATE OF NAME INCORPORATION BUSINESS ADDRESS ---- ------------- ---------------- Energy Fund II GP, LLC Delaware 1221 Avenue of the Americas New York, New York 10020 Beacon Energy Investors II, LP Delaware 1221 Avenue of the Americas New York, New York 10020 The Beacon Group Energy Investment Delaware 1221 Avenue of the Americas Fund II, L.P. New York, New York 10020 CGG Investors LLC Delaware 1717 South Boulder Avenue Tulsa, Oklahoma 74119 GF Ltd. Transaction Partnership, L.P. Delaware 1717 South Boulder Avenue Tulsa, Oklahoma 74119