Investor Presentaiton

Active in All Phases of the Offshore Oilfield Life Cycle Phase % of Oceaneering Revenue* Business Segment and Product and Service Revenue Streams KEY SSR = Subsea Robotics OPG = Offshore Projects Group MP = Manufactured Products IMDS Integrity = Management & Digital Solutions Exploration 12% •ROV Services (SSR) •Survey (SSR) •AUV Services (SSR) •Tooling (SSR) Development 51% •ROV Services (SSR) •Survey (SSR) •Tooling (SSR) ⚫IWOCS (1) and RWOCS (2) Svcs (OPG) •Subsea Hardware (MP) •Umbilicals (MP) •Vessel-based Installation Services (OPG) Production 34% •ROV Services (SSR) •AUV Services (SSR) •Tooling (SSR) ⚫IWOCS and RWOCS Services (OPG) •Subsea Hardware (MP) •Vessel-based Intervention Services (OPG) •Inspection Services (IMDS) •Inspection Services (IMDS) •Seabed Prep (OPG) Decommissioning 3% •ROV Services (SSR) •Tooling (SSR) •Subsea Work Systems (OPG) •IWOCS and RWOCS Services (OPG) Market Drivers and Key Market Indicators FIDS and Working Floating Rigs * 5-yr average estimates from four energy segments, as of 12/31/2022. (1) Installation and Workover Control Systems (2) ROV Workover Control Systems FIDs and Subsea Tree Installations Customer Opex Budgets and Subsea Infrastructure Field Abandonments and Facilities Removal/Cleanup OCEANEERING 8

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