{"transactions":[{"id":4630620,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-10-05T21:02:12.000Z","date":"2026-10-01","kind":"sale","planned":false,"acquired":false,"shares":4300,"price":44.38,"value":190834.0,"ownership":{"direct":false,"nature":"LFV, LP"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by LFV, LP on June 30, 2026.  LFV, LP is the family limited partnership of the Reporting Person, Roderick A. Larson."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $44.17 to 44.55, inclusive. The issuer undertakes to provide, upon request by the SEC staff or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range set forth in this Footnote to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The reporting person disclaims beneficial ownership of all of the shares held indirectly through this entity except to the extent of the pecuniary interest held therein."}],"balance_after":391279,"source":{"system":"sec-edgar","filing":"0001550150-26-000012","document":"wk-form4_1791234129.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1550150/000155015026000012/wk-form4_1791234129.xml","form_type":"4"}},{"id":4630619,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-10-05T21:02:12.000Z","date":"2026-10-01","kind":"sale","planned":false,"acquired":false,"shares":1700,"price":43.61,"value":74137.0,"ownership":{"direct":false,"nature":"LFV, LP"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by LFV, LP on June 30, 2026.  LFV, LP is the family limited partnership of the Reporting Person, Roderick A. Larson."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.15 to 43.98, inclusive. The issuer undertakes to provide, upon request by the SEC staff or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range set forth in this Footnote to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The reporting person disclaims beneficial ownership of all of the shares held indirectly through this entity except to the extent of the pecuniary interest held therein."}],"balance_after":395579,"source":{"system":"sec-edgar","filing":"0001550150-26-000012","document":"wk-form4_1791234129.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1550150/000155015026000012/wk-form4_1791234129.xml","form_type":"4"}},{"id":769223,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-21T21:14:34.000Z","date":"2026-05-20","kind":"grant","planned":false,"acquired":true,"shares":8558,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":23655,"source":{"system":"sec-edgar","filing":"0001550150-26-000010","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000155015026000010/edgardoc.xml","form_type":"4"}},{"id":774011,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-05-19T21:15:06.000Z","date":"2026-05-18","kind":"sale","planned":false,"acquired":false,"shares":5000,"price":38.27,"value":191350.0,"ownership":{"direct":false,"nature":"LFV, LP"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The reporting person disclaims beneficial ownership of all of the shares held indirectly through this entity except to the extent of the pecuniary interest held therein."}],"balance_after":397279,"source":{"system":"sec-edgar","filing":"0001550150-26-000007","document":"wk-form4_1779225303.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000155015026000007/wk-form4_1779225303.xml","form_type":"4"}},{"id":881152,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2026-02-26T22:47:18.000Z","date":"2026-02-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":38227,"price":37.22,"value":1422808.94,"ownership":{"direct":true},"balance_after":251431,"source":{"system":"sec-edgar","filing":"0001550150-26-000005","document":"wk-form4_1772146036.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000155015026000005/wk-form4_1772146036.xml","form_type":"4"}},{"id":887262,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Restricted Stock Units","published_at":"2026-02-24T22:55:44.000Z","date":"2026-02-20","kind":"grant","planned":false,"acquired":true,"shares":82672,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of the Company's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The restricted stock units vest in three equal annual installments on each of February 20, 2027, 2028 and 2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The restricted stock units vest in three equal annual installments on each of February 20, 2027, 2028 and 2029."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"The reported transaction involved the receipt of a grant of restricted stock units by the reported person.  The total reported in Column 9 excludes unvested restricted stock units that were granted in previous years, as the reporting person has previously reported awards of restricted stock units in Table I of Form 4."}],"balance_after":82672,"derivative":{"underlying":"Common Stock","underlying_shares":82672},"source":{"system":"sec-edgar","filing":"0001550150-26-000003","document":"wk-form4_1771973742.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/73756/000155015026000003/wk-form4_1771973742.xml","form_type":"4"}},{"id":887261,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Performance Stock Units","published_at":"2026-02-24T22:55:44.000Z","date":"2026-02-20","kind":"grant","planned":false,"acquired":true,"shares":82672,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each performance stock unit represents a contingent right to receive between zero and two shares of the Company's common stock. The performance stock units vest upon achievement of specific target level of performance."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Each performance stock unit represents a contingent right to receive between zero and two shares of the Company's common stock. The performance stock units vest upon achievement of specific target level of performance."}],"balance_after":82672,"derivative":{"expiration_date":"2028-12-31","underlying":"Common Stock","underlying_shares":82672},"source":{"system":"sec-edgar","filing":"0001550150-26-000003","document":"wk-form4_1771973742.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000155015026000003/wk-form4_1771973742.xml","form_type":"4"}},{"id":1144454,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-05-19T21:09:13.000Z","date":"2025-05-15","kind":"grant","planned":false,"acquired":true,"shares":15097,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":15097,"source":{"system":"sec-edgar","filing":"0000071829-25-000078","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182925000078/edgardoc.xml","form_type":"4"}},{"id":1244940,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-02-26T22:18:05.000Z","date":"2025-02-25","kind":"tax_withholding","planned":false,"acquired":false,"shares":41046,"price":22.09,"value":906706.14,"ownership":{"direct":true},"balance_after":352797,"source":{"system":"sec-edgar","filing":"0000073756-25-000047","document":"wk-form4_1740608279.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/73756/000007375625000047/wk-form4_1740608279.xml","form_type":"4"}},{"id":1244939,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2025-02-26T22:18:05.000Z","date":"2025-02-24","kind":"grant","planned":false,"acquired":true,"shares":91797,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":393843,"source":{"system":"sec-edgar","filing":"0000073756-25-000047","document":"wk-form4_1740608279.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000007375625000047/wk-form4_1740608279.xml","form_type":"4"}},{"id":1510083,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-05-20T21:12:23.000Z","date":"2024-05-16","kind":"grant","planned":false,"acquired":true,"shares":16108,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":16108,"source":{"system":"sec-edgar","filing":"0000071829-24-000070","document":"wk-form4_1716239527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182924000070/wk-form4_1716239527.xml","form_type":"4"}},{"id":1614134,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-02-28T23:07:08.000Z","date":"2024-02-26","kind":"tax_withholding","planned":false,"acquired":false,"shares":59932,"price":21.97,"value":1316706.04,"ownership":{"direct":true},"balance_after":423146,"source":{"system":"sec-edgar","filing":"0000073756-24-000059","document":"wk-form4_1709161617.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000007375624000059/wk-form4_1709161617.xml","form_type":"4"}},{"id":1618194,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2024-02-27T23:14:34.000Z","date":"2024-02-23","kind":"grant","planned":false,"acquired":true,"shares":100962,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":483078,"source":{"system":"sec-edgar","filing":"0000073756-24-000031","document":"wk-form4_1709075655.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000007375624000031/wk-form4_1709075655.xml","form_type":"4"}},{"id":1877495,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-26T17:07:30.000Z","date":"2023-05-18","kind":"grant","planned":false,"acquired":true,"shares":32134,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":32134,"source":{"system":"sec-edgar","filing":"0000071829-23-000091","document":"wk-form4a_1685120835.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182923000091/wk-form4a_1685120835.xml","form_type":"4/A","original_submission_date":"2023-05-22"}},{"id":1883775,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-22T23:29:50.000Z","date":"2023-05-18","kind":"grant","planned":false,"acquired":true,"shares":38560,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":223969,"source":{"system":"sec-edgar","filing":"0000071829-23-000069","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182923000069/edgardoc.xml","form_type":"4"}},{"id":1989188,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-02-28T23:13:40.000Z","date":"2023-02-27","kind":"tax_withholding","acquired":false,"shares":35916,"price":19.79,"value":710777.64,"ownership":{"direct":true},"balance_after":454122,"source":{"system":"sec-edgar","filing":"0000073756-23-000043","document":"wf-form4_167762599790897.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/73756/000007375623000043/wf-form4_167762599790897.xml","form_type":"4"}},{"id":1989187,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2023-02-28T23:13:40.000Z","date":"2023-02-24","kind":"grant","acquired":true,"shares":96899,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":490038,"source":{"system":"sec-edgar","filing":"0000073756-23-000043","document":"wf-form4_167762599790897.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/73756/000007375623000043/wf-form4_167762599790897.xml","form_type":"4"}},{"id":2262930,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-05-20T20:22:23.000Z","date":"2022-05-19","kind":"grant","acquired":true,"shares":36496,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":185409,"source":{"system":"sec-edgar","filing":"0000071829-22-000088","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182922000088/edgardoc.xml","form_type":"4"}},{"id":2367929,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-03-02T00:19:54.000Z","date":"2022-02-28","kind":"tax_withholding","acquired":false,"shares":32801,"price":14.14,"value":463806.14,"ownership":{"direct":true},"balance_after":539173,"source":{"system":"sec-edgar","filing":"0001537854-22-000019","document":"wf-form4_164618037639015.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785422000019/wf-form4_164618037639015.xml","form_type":"4"}},{"id":2367928,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2022-03-02T00:19:54.000Z","date":"2022-02-25","kind":"grant","acquired":true,"shares":104185,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":571974,"source":{"system":"sec-edgar","filing":"0001537854-22-000019","document":"wf-form4_164618037639015.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785422000019/wf-form4_164618037639015.xml","form_type":"4"}},{"id":2702229,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-05-21T15:00:17.000Z","date":"2021-05-20","kind":"grant","acquired":true,"shares":34299,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":183212,"source":{"system":"sec-edgar","filing":"0000071829-21-000066","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182921000066/edgardoc.xml","form_type":"4"}},{"id":2824362,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-03-03T01:01:05.000Z","date":"2021-03-01","kind":"tax_withholding","acquired":false,"shares":24528,"price":11.8,"value":289430.4,"ownership":{"direct":true},"balance_after":467789,"source":{"system":"sec-edgar","filing":"0001537854-21-000045","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785421000045/edgar.xml","form_type":"4"}},{"id":2824361,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2021-03-03T01:01:05.000Z","date":"2021-02-26","kind":"grant","acquired":true,"shares":152160,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":492317,"source":{"system":"sec-edgar","filing":"0001537854-21-000045","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785421000045/edgar.xml","form_type":"4"}},{"id":3138509,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-05-22T18:57:49.000Z","date":"2020-05-21","kind":"grant","acquired":true,"shares":30562,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting."}],"balance_after":148913,"source":{"system":"sec-edgar","filing":"0000071829-20-000054","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182920000054/edgardoc.xml","form_type":"4"}},{"id":3219394,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2020-03-10T20:39:33.000Z","date":"2020-03-09","kind":"purchase","acquired":true,"shares":10000,"price":5,"value":50000.0,"ownership":{"direct":true},"balance_after":340157,"source":{"system":"sec-edgar","filing":"0001537854-20-000092","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785420000092/edgar.xml","form_type":"4"}},{"id":3242761,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2020-02-28T23:06:41.000Z","date":"2020-02-27","kind":"grant","acquired":true,"shares":107922,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":330157,"source":{"system":"sec-edgar","filing":"0001537854-20-000076","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785420000076/edgar.xml","form_type":"4"}},{"id":3251442,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2020-02-25T23:43:18.000Z","date":"2020-02-24","kind":"tax_withholding","acquired":false,"shares":18984,"price":12.97,"value":246222.48,"ownership":{"direct":true},"balance_after":222235,"source":{"system":"sec-edgar","filing":"0001537854-20-000036","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785420000036/edgar.xml","form_type":"4"}},{"id":3511223,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-05-28T19:41:32.000Z","date":"2019-05-23","kind":"grant","acquired":true,"shares":20435,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the date prior to the next annual stockholders meeting."}],"balance_after":118351,"source":{"system":"sec-edgar","filing":"0000071829-19-000078","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182919000078/edgardoc.xml","form_type":"4"}},{"id":3625206,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2019-03-01T22:21:32.000Z","date":"2019-02-28","kind":"grant","acquired":true,"shares":83246,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":241219,"source":{"system":"sec-edgar","filing":"0001537854-19-000072","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785419000072/edgar.xml","form_type":"4"}},{"id":3652647,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2019-02-20T00:18:29.000Z","date":"2019-02-18","kind":"tax_withholding","acquired":false,"shares":8815,"price":16.65,"value":146769.75,"ownership":{"direct":true},"balance_after":157973,"source":{"system":"sec-edgar","filing":"0001537854-19-000038","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785419000038/edgar.xml","form_type":"4"}},{"id":3722991,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2018-12-21T21:53:33.000Z","date":"2018-12-21","kind":"purchase","acquired":true,"shares":5000,"price":11.34,"value":56700.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.335-$11.337, inclusive. The issuer undertakes to provide upon request by the SEC staff, or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range set forth in Footnote (3) to this Form 4."}],"balance_after":166788,"source":{"system":"sec-edgar","filing":"0001537854-18-000098","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785418000098/edgar.xml","form_type":"4"}},{"id":3925152,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-05-21T16:16:50.000Z","date":"2018-05-17","kind":"grant","acquired":true,"shares":13953,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the date prior to the next annual stockholders meeting."}],"balance_after":97916,"source":{"system":"sec-edgar","filing":"0000071829-18-000085","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182918000085/edgardoc.xml","form_type":"4"}},{"id":4022801,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2018-03-02T23:43:13.000Z","date":"2018-03-01","kind":"grant","acquired":true,"shares":62253,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":161788,"source":{"system":"sec-edgar","filing":"0001537854-18-000067","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785418000067/edgar.xml","form_type":"4"}},{"id":4046265,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2018-02-21T21:11:41.000Z","date":"2018-02-19","kind":"tax_withholding","acquired":false,"shares":4805,"price":18.45,"value":88652.25,"ownership":{"direct":true},"balance_after":99535,"source":{"system":"sec-edgar","filing":"0001537854-18-000018","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785418000018/edgar.xml","form_type":"4"}},{"id":4312964,"issuer":{"id":4885,"kind":"organization","name":"NPK International Inc.","symbol":"NPKI"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-19T17:26:23.000Z","date":"2017-05-18","kind":"grant","acquired":true,"shares":19230,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The shares will vest on the earlier of the first anniversary of the date of grant or the date prior to the next annual stockholders meeting."}],"balance_after":83963,"source":{"system":"sec-edgar","filing":"0000071829-17-000048","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/71829/000007182917000048/edgardoc.xml","form_type":"4"}},{"id":4332702,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2017-05-05T20:35:37.000Z","date":"2017-05-05","kind":"grant","acquired":true,"shares":25163,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":104340,"source":{"system":"sec-edgar","filing":"0001537854-17-000068","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785417000068/edgar.xml","form_type":"4"}},{"id":4423438,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2017-02-27T22:13:32.000Z","date":"2017-02-24","kind":"grant","acquired":true,"shares":22693,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":79177,"source":{"system":"sec-edgar","filing":"0001537854-17-000050","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785417000050/edgar.xml","form_type":"4"}},{"id":4438155,"issuer":{"id":3888,"kind":"organization","name":"OCEANEERING INTERNATIONAL INC","symbol":"OII"},"owners":[{"id":45520,"kind":"person","name":"LARSON RODERICK A.","position":1,"cik":"0001550150","reported_name":"LARSON RODERICK A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Common Stock","published_at":"2017-02-21T23:15:30.000Z","date":"2017-02-20","kind":"tax_withholding","acquired":false,"shares":4210,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":56484,"source":{"system":"sec-edgar","filing":"0001537854-17-000022","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/73756/000153785417000022/edgar.xml","form_type":"4"}}]}