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      <issuerCik>0001587732</issuerCik>
      <issuerName>ONE Gas, Inc.</issuerName>
      <secFileNumber>001-36108</secFileNumber>
      <issuerAddress>
        <com:street1>15 EAST FIFTH STREET</com:street1>
        <com:city>TULSA</com:city>
        <com:stateOrCountry>OK</com:stateOrCountry>
        <com:zipCode>74103</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>918-947-7000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Hutchinson Michael G</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
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    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab &amp; Co.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>1200</noOfUnitsSold>
      <aggregateMarketValue>88764.00</aggregateMarketValue>
      <noOfUnitsOutstanding>59877552</noOfUnitsOutstanding>
      <approxSaleDate>03/18/2025</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>05/25/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Equity Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1200</amountOfSecuritiesAcquired>
      <paymentDate>05/25/2023</paymentDate>
      <natureOfPayment>Services Rendered</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Sold out of: E NELAJ &amp; M HUTCHINSON TTEE MICHAEL &amp; EDLIRA HUTCHINSON RE
U/A DTD 04/26/2023</remarks>
    <noticeSignature>
      <noticeDate>03/18/2025</noticeDate>
      <signature>Michael Hutchinson</signature>
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144
0001555428
XXXXXXXX
LIVE
0001587732
ONE Gas, Inc.
001-36108
15 EAST FIFTH STREET
TULSA
OK
74103
918-947-7000
Hutchinson Michael G
Director
Common Stock
Charles Schwab & Co.
3000 Schwab Way
Westlake
TX
76262
1200
88764.00
59877552
03/18/2025
NYSE
Common Stock
05/25/2023
Equity Compensation
Issuer
N
1200
05/25/2023
Services Rendered
Y
Sold out of: E NELAJ & M HUTCHINSON TTEE MICHAEL & EDLIRA HUTCHINSON RE
U/A DTD 04/26/2023
03/18/2025
Michael Hutchinson