UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 6)* Universal Compression Holdings, Inc. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 913431 10 2 --------------------------------------- (CUSIP Number) Burt M. Martin Weatherford International, Inc. 515 Post Oak Boulevard, Suite 600 Houston, Texas 77027 (713) 693-4000 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) June 25, 2004 --------------------------------------- (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 Section240.13d-1(e),Section240.13d-1(f) or Section240.13d-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 Rule 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). Page 1 of 6 SCHEDULE 13D CUSIP NO. 9134341 10 2 -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Weatherford International Ltd. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (A) [ ] (B) [X] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(o) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Bermuda -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY 10,750,000 shares OWNED BY ---------------------------------------------------------- EACH 8 SHARED VOTING POWER REPORTING PERSON -0- WITH ---------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 10,750,000 shares ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 10,750,000 shares -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 34% (based on Annual Report on Form 10-K filed by the Issuer in June 2004) -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON CO -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Page 2 of 6 SCHEDULE 13D CUSIP NO. 9134341 10 2 -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Weatherford International, Inc. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (A) [ ] (B) [X] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(o) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ---------------------------------------------------------- EACH 8 SHARED VOTING POWER REPORTING PERSON -0- WITH ---------------------------------------------------------- 9 SOLE DISPOSITIVE POWER -0- ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -0- -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON CO -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Page 3 of 6 SCHEDULE 13D CUSIP NO. 9134341 10 2 -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON WEUS Holding, Inc. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (A) [ ] (B) [X] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(o) OR 2(E) [ ] -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ---------------------------------------------------------- EACH 8 SHARED VOTING POWER REPORTING PERSON -0- WITH ---------------------------------------------------------- 9 SOLE DISPOSITIVE POWER -0- ---------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON -0- -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON CO -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT Page 4 of 6 This Amendment No. 6 (this "Amendment No. 6") to the Statement on Schedule 13D filed on November 2, 2000, as amended by Amendment No. 1 filed on November 3, 2000, Amendment No. 2 filed on February 14, 2001, Amendment No. 3 filed on December 10, 2001, Amendment No. 4 filed on July 2, 2002 and Amendment No. 5 filed on April 23, 2004 (collectively, the "Statement"), relates to the beneficial ownership of shares of common stock, par value $0.01 per share ("Universal Common Stock"), of Universal Compression Holdings, Inc. ("Universal"). The address of Universal's principal executive offices is 4440 Brittmoore Road, Houston, Texas 77041. This Amendment No. 6 is being filed by Weatherford International Ltd., a Bermuda exempted company ("Weatherford Bermuda"), Weatherford International, Inc., a Delaware corporation and a wholly owned subsidiary of Weatherford Bermuda ("Weatherford Delaware"), and WEUS Holding, Inc., a Delaware corporation and a wholly owned subsidiary of Weatherford Delaware ("WEUS") (each individually a "Reporting Person" and together, the "Reporting Persons") to amend Items 5 of the Statement. Capitalized terms not defined herein shall have the meanings ascribed to them in the Statement. ITEM 5. INTEREST IN SECURITIES OF THE ISSUER Section (a) of Item 5 of the Statement is hereby amended to replace the second paragraph as follows: The aggregate 10,750,000 shares of Universal Common Stock that the Reporting Persons may be deemed to beneficially own represent approximately 34% of the outstanding shares of Universal Common Stock. Section (b) of Item 5 of the Statement is hereby amended and restated in its entirety to read as follows: (b) The number of shares of Universal Common Stock as to which there is sole power to vote or direct the vote, shared power to vote or direct the vote, sole power to dispose or direct the disposition, or shared power to dispose or direct the disposition for each Reporting Person is set forth on the cover pages of this Amendment No. 6, and such information is incorporated herein by reference. The Reporting Persons may be deemed to have the sole power to vote or direct the voting of up to 10,750,000 shares of Universal Common Stock, which amount is equal to 34% of the shares of Universal Common Stock outstanding based upon Universal's Annual Report on Form 10-k filed in June 2004. The Reporting Persons may be deemed to have the sole power to dispose of or direct the disposition of all 10,750,000 shares of Universal Common Stock and will not share the power to dispose of or direct the disposition of such shares with any other person. Section (c) of Item 5 of the Statement is hereby amended in its entirety to read as follows: Page 5 of 6 (c) Weatherford Bermuda sold 3,000,000 shares of Universal Common Stock on the New York Stock Exchange at $30.05 per share with a settlement date of June 25, 2004. SIGNATURES 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: June 29, 2004 WEATHERFORD INTERNATIONAL LTD. By: /s/ Burt M. Martin ------------------------------------------------- Name: Burt M. Martin Title: Senior Vice President, General Counsel and Secretary WEATHERFORD INTERNATIONAL, INC. By: /s/ Burt M. Martin ------------------------------------------------- Name: Burt M. Martin Title: Senior Vice President, General Counsel and Secretary WEUS HOLDING, INC. By: /s/ Burt M. Martin ------------------------------------------------- Name: Burt M. Martin Title: Assistant Secretary Page 6 of 6