-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, ULpKyIzoy0mLnxb4huU1vHn6+rpYRx8hrh77LAzx5YPA5wRwSrHavgSpMfeCpUez lSIEdhXlZvGKlYjX4bEwVQ== 0000890587-97-000036.txt : 19970912 0000890587-97-000036.hdr.sgml : 19970912 ACCESSION NUMBER: 0000890587-97-000036 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19970905 SROS: NYSE SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: PIONEER NATURAL RESOURCES CO CENTRAL INDEX KEY: 0001038357 STANDARD INDUSTRIAL CLASSIFICATION: CRUDE PETROLEUM & NATURAL GAS [1311] IRS NUMBER: 752702753 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A SEC ACT: SEC FILE NUMBER: 005-51453 FILM NUMBER: 97676001 BUSINESS ADDRESS: STREET 1: 1400 WILLIAMS SQUARE WEST STREET 2: 5205 NORTH O'CONNOR BLVD CITY: IRVING STATE: TX ZIP: 75039 BUSINESS PHONE: 9724449001 MAIL ADDRESS: STREET 1: 1400 WILLIAMS SQUARE WEST STREET 2: 5205 NORTH O'CONNOR BLVD CITY: IRVING STATE: TX ZIP: 75039 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: CAXTON INTERNATIONAL LTD CENTRAL INDEX KEY: 0001014708 STANDARD INDUSTRIAL CLASSIFICATION: [] FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 315 ENTERPRISE DR CITY: PLAINSBORO STATE: NJ ZIP: 08536 BUSINESS PHONE: 6092757200 MAIL ADDRESS: STREET 1: 315 ENTERPRISE DR CITY: PLAINSBORO STATE: NJ ZIP: 08536 SC 13D/A 1 SCHEDULE 13D/AMENDMENT UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 - -------------------------------------------------------------------------------- SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)1 Pioneer Natural Resources Company* ---------------------------------- (Name of Issuer) Common Stock, par value $.01 per share -------------------------------------- (Title of Class of Securities) 723787107 --------- (Cusip Number) Scott B. Bernstein, Esq. Caxton Corporation 315 Enterprise Drive Plainsboro, NJ 08536 (609) 936-2580 -------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) August 7, 1997 - -------------------------------------------------------------------------------- (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 Rule 13d-1(b)(3) or (4), check the following box [ ]. - -------- 1 The remainder of this cover page shall be filled out for a reporting persons'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.). * Pioneer Natural Resources Company is the successor in interest to MESA Inc. ("MESA"). The initial Schedule 13D was filed with respect to the Common Stock, $.01 par value, of MESA. Page 1 of 5 Pages SCHEDULE 13D CUSIP No. 723787107 Page 2 of 5 Pages --------- ------- ----- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Caxton International Limited - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* WC - -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] - -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION British Virgin Islands - -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES 0 ------------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY 667,401 ------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING 0 ------------------------------------------------------- PERSON 10 SHARED DISPOSITIVE POWER WITH 667,401 - -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 667,401 - -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) .9% - -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! SCHEDULE 13D CUSIP No. 723787107 Page 3 of 5 Pages --------- ------ ----- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Bruce S. Kovner - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS* Not Applicable - -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] - -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States - -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES 0 ------------------------------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY 667,401 ------------------------------------------------------- EACH 9 SOLE DISPOSITIVE POWER REPORTING 0 ------------------------------------------------------- PERSON 10 SHARED DISPOSITIVE WITH 667,401 - -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 667,401 - -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) .9% - -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! This Amendment No. 1 amends the Schedule 13D filed with the Securities and Exchange Commission on February 26, 1997 (the "Schedule 13D") by the Reporting Persons, which Schedule 13D related to the Common Stock, par value $.01 per share ("MESA Shares"), of MESA Inc., a Texas corporation ("MESA"). On August 7, 1997, MESA merged (the "Merger") with and into a subsidiary, Pioneer Natural Resources Company, a Delaware corporation ("Pioneer"). Pursuant to the Merger, MESA Shares and shares of MESA's Series A 8% Cumulative Convertible Preferred Stock ("Preferred Shares") were converted into shares of Pioneer Common Stock, par value $.01 per share ("Pioneer Shares"). Item 5. Interest in Securities of the Issuer. - ------- ------------------------------------- The information set forth in Item 5 ("Interest in Securities of the Issuer"), subparagraph (a) of the Schedule 13D is hereby amended and supplemented by adding the following information. Pursuant to the Merger, 2,137,448 Preferred Shares owned by Caxton International Limited were converted into 381,601 Pioneer Shares and 2,000,000 Mesa Shares were converted into 285,800 Pioneer Shares. Accordingly, as of the close of business on September 3, 1997, Caxton International Limited beneficially owned an aggregate of 667,401 Pioneer Shares representing approximately .9% of the total Pioneer Shares outstanding. Page 4 of 5 Pages SIGNATURE --------- After reasonable inquiry and to the best of the undersigned's knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct. Dated: September 4, 1997 CAXTON INTERNATIONAL LIMITED By: /s/ ------------------------------- Nitin Aggarwal President By: /s/ ------------------------------- Maxwell Quin Secretary /s/ ---------------------------------- Bruce S. Kovner, By Peter D'Angelo, Attorney-In-Fact Page 5 of 5 Pages -----END PRIVACY-ENHANCED MESSAGE-----