<?xml version="1.0" encoding="UTF-8"?><own:edgarSubmission xmlns:own="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <!-- Generated by Workiva -->
  <own:headerData>
    <own:submissionType>144</own:submissionType>
    <own:filerInfo>
      <own:filer>
        <own:filerCredentials>
          <own:cik>0001663211</own:cik>
          <own:ccc>XXXXXXXX</own:ccc>
        </own:filerCredentials>
      </own:filer>
      <own:liveTestFlag>LIVE</own:liveTestFlag>



    </own:filerInfo>
  </own:headerData>
  <own:formData>
    <own:issuerInfo>
      <own:issuerCik>0001534701</own:issuerCik>
      <own:issuerName>Phillips 66</own:issuerName>
      <own:issuerAddress>
        <com:street1>2331 Citywest Blvd.</com:street1>
        <com:city>Houston</com:city>
        <com:stateOrCountry>TX</com:stateOrCountry>
        <com:zipCode>77042</com:zipCode>
      </own:issuerAddress>
      <own:issuerContactPhone>832-765-3892</own:issuerContactPhone>
      <own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Kevin Mitchell</own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <own:relationshipsToIssuer>
        <own:relationshipToIssuer>Officer</own:relationshipToIssuer>
      </own:relationshipsToIssuer>
    </own:issuerInfo>
    <own:securitiesInformation>
      <own:securitiesClassTitle>Common Stock</own:securitiesClassTitle>
      <own:brokerOrMarketmakerDetails>
        <own:name>Merrill Lynch</own:name>
        <own:address>
          <com:street1>800 Capitol Street</com:street1>
          <com:street2>Suite 1900</com:street2>
          <com:city>Houston</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>77002</com:zipCode>
        </own:address>
      </own:brokerOrMarketmakerDetails>
      <own:noOfUnitsSold>29400</own:noOfUnitsSold>
      <own:aggregateMarketValue>4997153.53</own:aggregateMarketValue>
      <own:noOfUnitsOutstanding>400744022</own:noOfUnitsOutstanding>
      <own:approxSaleDate>05/08/2026</own:approxSaleDate>
      <own:securitiesExchangeName>NYSE</own:securitiesExchangeName>
    </own:securitiesInformation>
    <own:securitiesToBeSold>
      <own:securitiesClassTitle>Common Stock</own:securitiesClassTitle>
      <own:acquiredDate>02/06/2018</own:acquiredDate>
      <own:natureOfAcquisitionTransaction>Stock Option</own:natureOfAcquisitionTransaction>
      <own:nameOfPersonfromWhomAcquired>Phillips 66</own:nameOfPersonfromWhomAcquired>
      <own:isGiftTransaction>N</own:isGiftTransaction>
      <own:amountOfSecuritiesAcquired>5400</own:amountOfSecuritiesAcquired>
      <own:paymentDate>05/08/2026</own:paymentDate>
      <own:natureOfPayment>Cash</own:natureOfPayment>
    </own:securitiesToBeSold>
    <own:securitiesToBeSold>
      <own:securitiesClassTitle>Common Stock</own:securitiesClassTitle>
      <own:acquiredDate>02/05/2019</own:acquiredDate>
      <own:natureOfAcquisitionTransaction>Stock Option</own:natureOfAcquisitionTransaction>
      <own:nameOfPersonfromWhomAcquired>Phillips 66</own:nameOfPersonfromWhomAcquired>
      <own:isGiftTransaction>N</own:isGiftTransaction>
      <own:amountOfSecuritiesAcquired>24000</own:amountOfSecuritiesAcquired>
      <own:paymentDate>05/08/2026</own:paymentDate>
      <own:natureOfPayment>Cash</own:natureOfPayment>
    </own:securitiesToBeSold>
    <own:nothingToReportFlagOnSecuritiesSoldInPast3Months>N</own:nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Merrill Lynch</own:name>
        <own:address>
          <com:street1>800 Capitol Street</com:street1>
          <com:street2>Suite 1900</com:street2>
          <com:city>Houston</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>77002</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common Stock</own:securitiesClassTitle>
      <own:saleDate>03/05/2026</own:saleDate>
      <own:amountOfSecuritiesSold>16856</own:amountOfSecuritiesSold>
      <own:grossProceeds>2833273.26</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Merrill Lynch</own:name>
        <own:address>
          <com:street1>800 Capitol Street</com:street1>
          <com:street2>Suite 1900</com:street2>
          <com:city>Houston</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>77002</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common Stock</own:securitiesClassTitle>
      <own:saleDate>03/05/2026</own:saleDate>
      <own:amountOfSecuritiesSold>4944</own:amountOfSecuritiesSold>
      <own:grossProceeds>815672.66</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>Merrill Lynch</own:name>
        <own:address>
          <com:street1>800 Capitol Street</com:street1>
          <com:street2>Suite 1900</com:street2>
          <com:city>Houston</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>77002</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>Common Stock</own:securitiesClassTitle>
      <own:saleDate>03/31/2026</own:saleDate>
      <own:amountOfSecuritiesSold>15629</own:amountOfSecuritiesSold>
      <own:grossProceeds>2970077.63</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:remarks>The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.</own:remarks>
    <own:noticeSignature>
      <own:noticeDate>05/08/2026</own:noticeDate>
      <own:planAdoptionDates>
        <own:planAdoptionDate>11/21/2025</own:planAdoptionDate>
      </own:planAdoptionDates>
      <own:signature>Kevin Mitchell</own:signature>
    </own:noticeSignature>
  </own:formData>
</own:edgarSubmission>
