аЯрЁБс;ўџ ўџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџ§џџџџџџџ ўџџџўџџџўџџџ ўџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџџRoot Entryџџџџџџџџџџџџўџџџџџџџџџџџџџџџўџџџџџџџџџџџџџџџўџџџџџџџџџџџџџџџўџџџ ЛЬсАСт\pCalc BАaР= œЏМ=@ 8X@"Зк1мCalibri1ШџArial1ШџArial1ШџArial1мМCalibri1мCalibri ЄGeneralЅ#,##0.00 І#,##03Ї._(\$* #,##0_);_(\$* \(#,##0\);_(\$* \-_);_(@_)рЄѕџ Р рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рѕџ єР рЄ Р р+ѕџ №Р р)ѕџ №Р р,ѕџ №Р р*ѕџ №Р р ѕџ №Р рЄ (Р рЄ"8Р рЄ*Р рЄ(Р рЄ (Р рЅ Р рЄ(Р рІ Р рЄ(Р рЄ"0Р рЄ"8Р рЄ(8Р рЄ"Р рІ"Р рЇ"Р рЄ*8Р рЄ(8Р “€џ“€џ“€џ“€џ“€џ“€џ`…оrisch frank a…jrisch frank a-1…f(risch frank a-2…^,risch frank a-3…Р0risch frank a-4ŒССTыz№r№83 №П Р@@ё їќЊPRisch Frank AFORM 4єUNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940WOMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5 OMB APPROVALHOMB Number: 3235-0287 Estimated average burden hours per response: 0.5 OMB Number: 3235-0287Estimated average burdenhours per response:‡Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).Ї1. Name and Address of Reporting Person*RISCH FRANK A (Last) (First) (Middle) 5205 N. O'CONNOR BLVD., SUITE 200 (Street) IRVING TX 75039 (City) (State) (Zip)RISCH FRANK A(Last)(First)(Middle)!5205 N. O'CONNOR BLVD., SUITE 200IRVINGTX(City)(State)(Zip)\2. Issuer Name and Ticker or Trading Symbol PIONEER NATURAL RESOURCES CO [ PXD ]š5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)XDirector 10% OwnerOfficer (give title below)Other (specify below)D3. Date of Earliest Transaction (Month/Day/Year) 05/21/2020A4. If Amendment, Date of Original Filed (Month/Day/Year)˜6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person"Form filed by One Reporting Person,Form filed by More than One Reporting PersonPTable I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned&1. Title of Security (Instr. 3)*2. Transaction Date (Month/Day/Year)82A. Deemed Execution Date, if any (Month/Day/Year)%3. Transaction Code (Instr. 8)H4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)k5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)?6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)<7. Nature of Indirect Beneficial Ownership (Instr. 4)CodeVAmount (A) or (D)Price Common Stock 05/21/2020ADŒTable II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)11. Title of Derivative Security (Instr. 3)62. Conversion or Exercise Price of Derivative Security*3. Transaction Date (Month/Day/Year)83A. Deemed Execution Date, if any (Month/Day/Year)%4. Transaction Code (Instr. 8)d5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)?6. Date Exercisable and Expiration Date (Month/Day/Year)X7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)18. Price of Derivative Security (Instr. 5)p9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)@10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)=11. Nature of Indirect Beneficial Ownership (Instr. 4)(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares5Thomas J. Murphy, Attorney-in-Fact For Frank A. Risch 05/26/2020 ** Signature of Reporting PersonDatekReminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.Ÿ* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).Љ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).ЌNote: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.žPersons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.џ P cc ЛЬ d-Cыт6?_€%,С*+‚ƒ„&ffffffц?'ffffffц?(ш?)ш?Ё"d,, Ж` Ж`р? 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