<SEC-DOCUMENT>0001038357-18-000034-index.html : 20180507
<SEC-HEADER>0001038357-18-000034.hdr.sgml : 20180507
<ACCEPTANCE-DATETIME>20180507163508
ACCESSION NUMBER:		0001038357-18-000034
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20180507
DATE AS OF CHANGE:		20180507
EFFECTIVENESS DATE:		20180507

FILER:

	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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13245
		FILM NUMBER:		18811727

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>defa14aproxysupplement-572.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: defa14aproxysupplement-572.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>proxysuppdefa.gif
<TEXT>
Document 2 - file: proxysuppdefa.gif

</DOCUMENT>
</SEC-DOCUMENT>