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      <filer>
        <filerCredentials>
          <cik>0001950059</cik>
          <ccc>XXXXXXXX</ccc>
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      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


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      <issuerCik>0000073756</issuerCik>
      <issuerName>OCEANEERING INTERNATIONAL INC</issuerName>
      <secFileNumber>001-10945</secFileNumber>
      <issuerAddress>
        <com:street1>5875 NORTH SAM HOUSTON PARKWAY WEST</com:street1>
        <com:street2>SUITE 400</com:street2>
        <com:city>HOUSTON</com:city>
        <com:stateOrCountry>TX</com:stateOrCountry>
        <com:zipCode>77086</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>713-329-4500</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DYER CHRISTOPHER J</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>4800</noOfUnitsSold>
      <aggregateMarketValue>103157.22</aggregateMarketValue>
      <noOfUnitsOutstanding>100779554</noOfUnitsOutstanding>
      <approxSaleDate>08/04/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/22/2016</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>243</amountOfSecuritiesAcquired>
      <paymentDate>02/22/2016</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/20/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>213</amountOfSecuritiesAcquired>
      <paymentDate>02/20/2017</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/19/2018</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>447</amountOfSecuritiesAcquired>
      <paymentDate>02/19/2018</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/01/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>674</amountOfSecuritiesAcquired>
      <paymentDate>03/01/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/28/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>874</amountOfSecuritiesAcquired>
      <paymentDate>02/28/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/18/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>831</amountOfSecuritiesAcquired>
      <paymentDate>02/18/2019</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/24/2020</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>479</amountOfSecuritiesAcquired>
      <paymentDate>02/24/2020</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/27/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1039</amountOfSecuritiesAcquired>
      <paymentDate>02/27/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/04/2023</noticeDate>
      <signature>/s/ Rae Pierson, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact Christopher Dyer</signature>
    </noticeSignature>
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144
0001950059
XXXXXXXX
LIVE
0000073756
OCEANEERING INTERNATIONAL INC
001-10945
5875 NORTH SAM HOUSTON PARKWAY WEST
SUITE 400
HOUSTON
TX
77086
713-329-4500
DYER CHRISTOPHER J
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
4800
103157.22
100779554
08/04/2023
NYSE
Common
02/22/2016
Restricted Stock Vesting
Issuer
N
243
02/22/2016
Compensation
Common
02/20/2017
Restricted Stock Vesting
Issuer
N
213
02/20/2017
Compensation
Common
02/19/2018
Restricted Stock Vesting
Issuer
N
447
02/19/2018
Compensation
Common
03/01/2021
Restricted Stock Vesting
Issuer
N
674
03/01/2021
Compensation
Common
02/28/2022
Restricted Stock Vesting
Issuer
N
874
02/28/2022
Compensation
Common
02/18/2019
Restricted Stock Vesting
Issuer
N
831
02/18/2019
Compensation
Common
02/24/2020
Restricted Stock Vesting
Issuer
N
479
02/24/2020
Compensation
Common
02/27/2023
Restricted Stock Vesting
Issuer
N
1039
02/27/2023
Compensation
Y
08/04/2023
/s/ Rae Pierson, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact Christopher Dyer