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      <filer>
        <filerCredentials>
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          <ccc>XXXXXXXX</ccc>
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      <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>GOODWIN DEANNA L</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</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>48303</noOfUnitsSold>
      <aggregateMarketValue>800537.97</aggregateMarketValue>
      <noOfUnitsOutstanding>100770034</noOfUnitsOutstanding>
      <approxSaleDate>05/15/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/01/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>8000</amountOfSecuritiesAcquired>
      <paymentDate>03/01/2019</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/15/2020</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>10584</amountOfSecuritiesAcquired>
      <paymentDate>02/15/2020</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/27/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>12332</amountOfSecuritiesAcquired>
      <paymentDate>02/27/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/26/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>17387</amountOfSecuritiesAcquired>
      <paymentDate>02/26/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>05/15/2023</noticeDate>
      <signature>/s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Deanna Goodwin</signature>
    </noticeSignature>
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144
0001730316
XXXXXXXX
LIVE
0000073756
OCEANEERING INTERNATIONAL INC
001-10945
5875 NORTH SAM HOUSTON PARKWAY WEST
SUITE 400
HOUSTON
TX
77086
713-329-4500
GOODWIN DEANNA L
Director
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
48303
800537.97
100770034
05/15/2023
NYSE
Common
03/01/2019
Restricted Stock Vesting
Issuer
N
8000
03/01/2019
Compensation
Common
02/15/2020
Restricted Stock Vesting
Issuer
N
10584
02/15/2020
Compensation
Common
02/27/2021
Restricted Stock Vesting
Issuer
N
12332
02/27/2021
Compensation
Common
02/26/2022
Restricted Stock Vesting
Issuer
N
17387
02/26/2022
Compensation
Y
05/15/2023
/s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Deanna Goodwin