-----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, LrTK+/f9ZH58EUFLRF2VDfkfgoBMiSn3EF3aYVGxd9x5KAzl94JiPv+QSlyOu5yl ozMBDBVKVIch/3Qpc1YAPw== 0000807985-10-000032.txt : 20100629 0000807985-10-000032.hdr.sgml : 20100629 20100628181753 ACCESSION NUMBER: 0000807985-10-000032 CONFORMED SUBMISSION TYPE: SC 13D/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20100629 DATE AS OF CHANGE: 20100628 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: 1934 Act SEC FILE NUMBER: 005-51453 FILM NUMBER: 10921212 BUSINESS ADDRESS: STREET 1: 200 WILLIAMS SQUARE WEST STREET 2: 5205 N OCONNOR BLVD CITY: IRVING STATE: TX ZIP: 75039 BUSINESS PHONE: 9724449001 MAIL ADDRESS: STREET 1: 200 WILLIAMS SQUARE WEST STREET 2: 5205 N OCONNOR BLVD CITY: IRVING STATE: TX ZIP: 75039 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: SOUTHEASTERN ASSET MANAGEMENT INC/TN/ CENTRAL INDEX KEY: 0000807985 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 620951781 STATE OF INCORPORATION: TN FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D/A BUSINESS ADDRESS: STREET 1: 6410 POPLAR AVENUE STE 900 CITY: MEMPHIS STATE: TN ZIP: 38119 BUSINESS PHONE: 9017612474 MAIL ADDRESS: STREET 1: 6410 POPLAR AVENUE STREET 2: SUITE 900 CITY: MEMPHIS STATE: TN ZIP: 38119 FORMER COMPANY: FORMER CONFORMED NAME: PROFESSIONAL PORTFOLIO MANAGEMENT INC DATE OF NAME CHANGE: 19890314 FORMER COMPANY: FORMER CONFORMED NAME: SOUTHEASTERN ASSET MANAGEMENT INC DATE OF NAME CHANGE: 19880622 SC 13D/A 1 pxd13d.txt PIONEER NATURAL RESOURCES COMPANY 13D SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 3 Pioneer Natural Resources Company ________________________________________________________ (Name of Issuer) Common Stock _______________________________________________________ (Title of Class and Securities) 723787107 _______________________________________________________ (CUSIP Number of Class of Securities) O. Mason Hawkins Chairman of the Board and C.E.O. and Andrew R. McCarroll Vice President & General Counsel Southeastern Asset Management, Inc. 6410 Poplar Avenue, Suite 900 Memphis, TN 38119 (901) 761-2474 ___________________________________________________________ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) June 24, 2010 ___________________________________________ (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 Sections 240.13d-1(e), 240.13d-1(f), or 240.13d-1(g), check the following box: [X] CUSIP No. 723787107 13D _____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS Southeastern Asset Management, Inc. I.D. No. 62-0951781 _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) (b) X _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) SOURCE OF FUNDS 00: Funds of investment advisory clients _____________________________________________________________________________ (5) CHECK BOX IF DISCOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] _____________________________________________________________________________ (6) CITIZENSHIP OR PLACE OF ORGANIZATION Tennessee _____________________________________________________________________________ :(7) SOLE VOTING POWER : (Discretionary Accounts) NUMBER OF SHARES BENEFICIALLY : 6,290,091 shares OWNED BY EACH REPORTING PERSON __________________________________________ WITH :(8) SHARED OR NO VOTING POWER : 12,092,900 shares (Shared) : 1,938,800 shares (No Vote) __________________________________________ :(9) SOLE DISPOSITIVE POWER (Discretionary Accounts) : 8,228,891 shares __________________________________________ :(10) SHARED DISPOSITIVE POWER : 12,092,900 shares (Shared) : 0 shares (None) _____________________________________________________________________________ (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 20,321,791 shares _____________________________________________________________________________ (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN SHARES _____________________________________________________________________________ (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11 17.5 % _____________________________________________________________________________ (14) TYPE OF REPORTING PERSON IA _____________________________________________________________________________ CUSIP No. 723787107 13D _____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS Longleaf Partners Fund I.D. No. 63-6147721 _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) (b) X _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) SOURCE OF FUNDS 00: Funds of investment company shareholders _____________________________________________________________________________ (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEDDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 29e) [ ] _____________________________________________________________________________ (6) CITIZENSHIP OR PLACE OF ORGANIZATION Massachusetts _____________________________________________________________________________ :(7) SOLE VOTING POWER NUMBER OF SHARES BENEFICIALLY : None OWNED BY EACH REPORTING PERSON __________________________________________ WITH :(8) SHARED VOTING POWER : 8,657,900 shares (Shared) __________________________________________ :(9) SOLE DISPOSITIVE POWER : None __________________________________________ :(10) SHARED DISPOSITIVE POWER : 8,657,900 shares (Shared) _____________________________________________________________________________ (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,657,900 shares _____________________________________________________________________________ (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN SHARES _____________________________________________________________________________ (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11 7.5 % _____________________________________________________________________________ (14) TYPE OF REPORTING PERSON IV _____________________________________________________________________________ CUSIP No. 723787107 13D _____________________________________________________________________________ (1) NAMES OF REPORTING PERSONS O. Mason Hawkins I.D. No. XXX-XX-XXXX _____________________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) (b) X _____________________________________________________________________________ (3) SEC USE ONLY _____________________________________________________________________________ (4) SOURCE OF FUNDS 00: None _____________________________________________________________________________ (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] _____________________________________________________________________________ (6) CITIZENSHIP OR PLACE OF ORGANIZATION Citizen of United States _____________________________________________________________________________ :(7) SOLE VOTING POWER : (Discretionary Accounts) NUMBER OF SHARES BENEFICIALLY : None OWNED BY EACH REPORTING PERSON __________________________________________ WITH :(8) SHARED VOTING POWER : None __________________________________________ :(9) SOLE DISPOSITIVE POWER : None __________________________________________ :(10) SHARED DISPOSITIVE POWER : None _____________________________________________________________________________ (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON None (See Item 3) _____________________________________________________________________________ (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN SHARES [ ] _____________________________________________________________________________ (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11 0.0 % _____________________________________________________________________________ (14) TYPE OF REPORTING PERSON IN _____________________________________________________________________________ Item 5. Interest In Securities Of The Issuer Item 5 shall be amended and restated as follows: (a) The aggregate number and percentage of Securities to which this Schedule 13D relates is 20,321,791 shares of the common stock of the Issuer, constituting approximately 17.5% of the 115,929,792 shares outstanding. Common % of outstanding Shares Common Shares Held ___________________________________________________________________ Voting Authority Sole: 6,290,091 5.4% Shared: 12,092,900* 10.4% None: 1,938,800 1.7% Total 20,321,791 17.5% *Consists of shares owned by Longleaf Partners Fund and Longleaf Partners Small-Cap Fund, each a series of Longleaf Partners Funds Trust, an open-end management investment company registered under the Investment Company Act of 1940. Dispositive Authority Sole: 8,228,891 7.1% Shared: 12,092,900* 10.4% None: 0 0.0% Total 20,321,791 17.5% *Consists of shares owned by Longleaf Partners Fund and Longleaf Partners Small-Cap Fund, each a series of Longleaf Partners Funds Trust, an open-end management investment company registered under the Investment Company Act of 1940. (b) Southeastern generally has the sole power to dispose of or to direct the disposition of the Securities held for discretionary accounts of its investment clients, and may be granted the sole power to vote or direct the vote of such Securities; such powers may be retained by or shared with the respective clients for shared or non-discretionary accounts. Shares held by any Series of Longleaf Partners Funds Trust are reported in the "shared" category. (c) Purchase or sale transactions in the Securities during the past sixty days are disclosed on Schedule II. (d) The investment advisory clients of Southeastern have the sole right to receive and, subject to notice, to withdraw the proceeds from the sale of the Securities, and the sole power to direct the receipt of dividends from any of the Securities held for their respective accounts. Such clients may also terminate the investment advisory agreements without penalty upon appropriate notice. Southeastern does not have an economic interest in any of the Securities reported herein. (e) Not applicable. 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 28, 2010 Southeastern Asset Management, Inc. By /s/ Andrew R. McCarroll _______________________________________________ Andrew R. McCarroll Vice President and General Counsel Longleaf Partners Fund By: Southeastern Asset Management, Inc. /s/ Andrew R. McCarroll _______________________________________________ Andrew R. McCarroll Vice President & General Counsel O. Mason Hawkins, Individually /s/ O. Mason Hawkins _______________________________________________ Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of this Amendment No. 3 to Schedule 13D with respect to the Securities of the Issuer and further agree that this joint filing agreement be included as an exhibit to this Amendment No. 3 to Schedule 13D. In evidence thereof, the undersigned hereby execute this Agreement as of June 28, 2010. Southeastern Asset Management, Inc. By /s/ Andrew R. McCarroll _______________________________________________ Andrew R. McCarroll Vice President and General Counsel Longleaf Partners Fund By: Southeastern Asset Management, Inc. /s/ Andrew R. McCarroll _______________________________________________ Andrew R. McCarroll Vice President & General Counsel O. Mason Hawkins, Individually /s/ O. Mason Hawkins _______________________________________________ Schedule II Transactions in the Last Sixty Days Transaction Type Date # of Shares Price per Share * Sale 05/05/2010 6849 $62.38 Sale 06/03/2010 1000 $66.94 Sale 06/09/2010 6200 $66.28 Sale 06/15/2010 20000 $70.79 Sale 06/24/2010 537201 $65.31 Sale 06/25/2010 742799 $65.34 Sale 06/28/1010 100 $65.46 Sales by Southeastern private account clients in the ordinary course of business on the New York Stock Exchange or through Electronic Communication Networks (ECNs). * Net of commissions 1 SCHEDULE 13D Pioneer Natural Resources Company ("Issuer") 8 -----END PRIVACY-ENHANCED MESSAGE-----