<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
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        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001751484</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001038357</issuerCik>
            <issuerName>PIONEER NATURAL RESOURCES COMPANY</issuerName>
            <secFileNumber>001-13245</secFileNumber>
            <issuerAddress>
                <ns2:street1>5205 N. O'Connor Blvd.</ns2:street1>
                <ns2:city>Irving</ns2:city>
                <ns2:stateOrCountry>TX</ns2:stateOrCountry>
                <ns2:zipCode>75039</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(972) 444-9001</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MARIA DREYFUS </nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>10632</noOfUnitsSold>
            <aggregateMarketValue>2409438.72</aggregateMarketValue>
            <noOfUnitsOutstanding>233308884</noOfUnitsOutstanding>
            <approxSaleDate>12/15/2023</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>11/08/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Open Market</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>10632</amountOfSecuritiesAcquired>
            <paymentDate>11/10/2021</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>12/15/2023</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Maria Dreyfus</signature>
        </noticeSignature>
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144
0001751484
XXXXXXXX
LIVE
0001038357
PIONEER NATURAL RESOURCES COMPANY
001-13245
5205 N. O'Connor Blvd.
Irving
TX
75039
(972) 444-9001
MARIA DREYFUS
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
10632
2409438.72
233308884
12/15/2023
NYSE
Common
11/08/2021
Open Market Purchase
Open Market
N
10632
11/10/2021
Cash
Y
12/15/2023
/s/ Maria Dreyfus