UNITED STATES
                    SECURITIES AND EXCHANGE COMMISSION
                         WASHINGTON, D.C. 20549
                              SCHEDULE 13G
               UNDER THE SECURITIES EXCHANGE ACT OF 1934
                     	      ANNUAL FILING
PIONEER NATURAL RESOURCES CO
(NAME OF ISSUER)
COMMON
(TITLE CLASS OF SECURITIES)
723787107
(CUSIP NUMBER)
12/31/2008
(DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT)
CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS
SCHEDULE IS FILED:
			(X)  RULE 13D-1(B)
			( )  RULE 13D-1(C)
			( )  RULE 13D-1(D)
*THE REMAINDER OF THIS COVER PAGE SHALL BE FILLED OUT FOR A
REPORTING PERSON'S INITIAL FILING ON THIS FORM WITH RESPECT TO THE
SUBJECT CLASS OF SECURITIES, AND FOR ANY SUBSEQUENT AMENDMENT
CONTAINING INFORMATION WHICH WOULD ALTER THE DISCLOSURES PROVIDED
IN A PRIOR COVER PAGE.
THE INFORMATION REQUIRED IN 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).
CUSIP NO. 723787107			13G			 PAGE 2 OF 5 PAGES
1.  NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF PERSON
STATE STREET BANK AND TRUST COMPANY, ACTING IN VARIOUS FIDUCIARY
CAPACITIES.		04-1867445
2.  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP.*
    NOT APPLICABLE                                   A __
                                                     B __
3.  SEC USE ONLY
4.  CITIZENSHIP OR PLACE OF ORGANIZATION
    BOSTON, MASSACHUSETTS
5.  SOLE VOTING POWER
    6,314,836 SHARES
6.  SHARED VOTING POWER
    0 SHARES
7.  SOLE DISPOSITIVE POWER
    0 SHARES
8.  SHARED DISPOSITIVE POWER
    6,314,836 SHARES
9.  AGGREGATED AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
    6,314,836 SHARES
10.  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
     SHARES*
     NOT APPLICABLE
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
     5.4%
12.  TYPE OF REPORTING PERSON*
     BK
 					13G        PAGE 3 OF 5 PAGES
ITEM 1.
  (A)  NAME OF ISSUER
 	  PIONEER NATURAL RESOURCES CO
  (B)  ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
       200 WILLIAMS SQUARE WEST
	  5205 N OCONNOR BLVD
       IRVING TX 75039
ITEM 2.
     (A)  NAME OF PERSON FILING
          STATE STREET BANK AND TRUST COMPANY, TRUSTEE
     (B)  ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE,
          RESIDENCE
          STATE STREET FINANCIAL CENTER
	 ONE LINCOLN STREET
	 BOSTON, MA 02111
     (C)  CITIZENSHIP
          BOSTON, MASSACHUSETTS
	(D)	TITLE CLASS OF SECURITIES
		COMMON
	(E)	CUSIP NUMBER
		723787107
ITEM 3.   IF THIS STATEMENT IS FILED PURSUANT TO RULE 13D-1(B), OR
		13D-2(B), CHECK WHETHER THE PERSON FILING IS A:
     (B)  _X_  BANK AS DEFINED IN SECTION 3(A)(6) OF THE ACT
						13G		PAGE 4 OF 5 PAGES
ITEM 4. OWNERSHIP
(A)	AMOUNT BENEFICIALLY OWNED
6,314,836 SHARES
(B)	PERCENT OF CLASS
5.4%
  (C)  NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS:
    (I)  SOLE POWER TO VOTE OR TO DIRECT THE VOTE OF
         6,314,836 SHARES
   (II)  SHARED POWER TO VOTE OR TO DIRECT THE VOTE OF
         0 SHARES
  (III)  SOLE POWER TO DISPOSE OR TO DIRECT THE DISPOSITION OF
         0 SHARES
   (IV)  SHARED POWER TO DISPOSE OR TO DIRECT THE DISPOSITION OF
         6,314,836 SHARES
ITEM 5.   OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
          NOT APPLICABLE
ITEM 6.   OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER
          PERSON.
		NOT APPLICABLE
ITEM 7.  IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
COMPANY
          NOT APPLICABLE
ITEM 8.  IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
          NOT APPLICABLE
ITEM 9.  NOTICE OF DISSOLUTION OF GROUP
          NOT APPLICABLE
                          13G                PAGE 5 OF 5 PAGES
ITEM 10.  CERTIFICATION
          THE FOLLOWING CERTIFICATION SHALL BE INCLUDED IF THE
          STATEMENT IS FILED PURSUANT TO RULE 13D-1(B):
          BY SIGNING BELOW I CERTIFY THAT, TO THE BEST OF MY
KNOWLEDGE AND BELIEF, THE SECURITIES REFERRED TO ABOVE WERE
ACQUIRED IN THE ORDINARY COURSE OF BUSINESS AND WERE NOT ACQUIRED
FOR THE PURPOSE OF AND DO NOT HAVE THE EFFECT OF CHANGING OR
INFLUENCING THE CONTROL OF THE ISSUER OF SUCH SECURITIES AND WERE
NOT ACQUIRED IN CONNECTION WITH OR AS A PARTICIPANT IN ANY
TRANSACTION HAVING SUCH PURPOSES OR EFFECT.
     THIS REPORT IS NOT AN ADMISSION THAT STATE STREET BANK AND
TRUST COMPANY IS THE BENEFICIAL OWNER OF ANY SECURITIES COVERED BY
THIS REPORT, AND STATE STREET BANK AND TRUST COMPANY EXPRESSLY
DISCLAIMS BENEFICIAL OWNERSHIP OF ALL SHARES REPORTED HEREIN
PURSUANT TO RULE 13D-4.
                         SIGNATURE
     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.
13 FEBRUARY 2022
STATE STREET CORPORATION
STATE STREET BANK AND TRUST COMPANY,
TRUSTEE
/s/ JAYNE DONAHUE
EXECUTIVE VICE PRESIDENT

Data Provided by Refinitiv. Minimum 15 minutes delayed.