FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * DEALY RICHARD P   2. Issuer Name and Ticker or Trading Symbol PIONEER NATURAL RESOURCES CO [PXD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP & CFO (Last) (First) (Middle) 5205 N O'CONNOR BLVD, SUITE 900 3. Date of Earliest Transaction (Month/Day/Year) 09/24/2015 (Street) IRVING, TX 75039 4. If Amendment, Date 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 (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. 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) Code V Amount (A) or (D) Price Common Stock               310 (1) I 401(k) Common Stock               58,771 D   Common Stock 09/24/2015   G(2)   23,546 D $ 0 141,332 I by Family Limited Partnership Common Stock 09/24/2015   G(2)   23,546 A $ 0 141,332 I by Family Limited Partnership Common Stock 09/24/2015   S(3)   117,786 D $ 119.85 141,332 I by Family Limited Partnership Common Stock 09/24/2015   P(3)   117,786 A $ 119.85 141,332 I by Family Limited Partnership

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
DEALY RICHARD P 5205 N O'CONNOR BLVD SUITE 900 IRVING, TX 75039			EVP & CFO

Signatures

Thomas J. Murphy, Attorney-in-Fact for Richard P. Dealy		09/28/2015
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Consists of shares beneficially owned as a result of reporting person's ownership of units in the Pioneer Natural Resources USA, Inc. 401(k)
(2)	All of the shares of common stock of the issuer underlying this transaction are owned by a family limited partnership the general partner of which is controlled by the reporting person. This transaction is reporting gifts by the reporting person and his spouse of limited partnership interests in the partnership to trusts the beneficiaries of which are children of the reporting person. The shares of common stock of the issuer underlying this transaction continued to be owned by the family limited partnership.
(3)	All of the shares of common stock of the issuer underlying this transaction are owned by a family limited partnership the general partner of which is controlled by the reporting person. This transaction is reporting sales by the reporting person and his spouse of, in the aggregate, an 83.34% interest in the partnership to a trust the beneficiaries of which are the reporting person and members of his family for promissory notes in the aggregate principal amount equal to the fair market value of the transferred partnership interests. The shares of common stock of the issuer underlying this transaction continued to be owned by the family limited partnership. For purposes of this filing, the reporting person is reporting in column 4 as the price of the securities the opening price of common stock of the issuer on the date of the transaction.

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