0001246360-18-000820.txt : 20180226 0001246360-18-000820.hdr.sgml : 20180226 20180226162818 ACCESSION NUMBER: 0001246360-18-000820 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180223 FILED AS OF DATE: 20180226 DATE AS OF CHANGE: 20180226 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: SHEFFIELD SCOTT D CENTRAL INDEX KEY: 0001034316 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-13245 FILM NUMBER: 18640922 MAIL ADDRESS: STREET 1: 5205 NORTH OCONNOR BLVD STREET 2: SUITE 200 CITY: IRVING STATE: TX ZIP: 75039 ISSUER: 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 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 4 1 form.xml PRIMARY DOCUMENT X0306 4 2018-02-23 false 0001038357 PIONEER NATURAL RESOURCES CO PXD 0001034316 SHEFFIELD SCOTT D 5205 N. O'CONNOR BLVD., SUITE 200 IRVING TX 75039 true false false false Common Stock 582600 D Common Stock 22143 I 401(k) Common Stock 2760 I by Spouse Common Stock 18000 I Family Trust (Officer Trustee) Common Stock 20000 I Family Trust (Spouse Trustee) Common Stock 2018-02-23 4 S false 1000 180 D 0 I KYS Trust 2016 Common Stock 2018-02-23 4 S false 1000 180 D 0 I SDS Trust 2016 Consists of shares beneficially owned as a result of reporting person's ownership of units in the Pioneer Natural Resources USA, Inc. 401(k) Thomas J. Murphy, Attorney-in-Fact For Scott D. Sheffield 2018-02-26