Investor Presentaiton

Non-GAAP Information This presentation includes several "non-GAAP" financial measures, as defined under Regulation G of the U.S. Securities Exchange Act of 1934, as amended. Oceaneering reports its financial results in accordance with U.S. generally accepted accounting principles but believes that certain non-GAAP financial measures provide useful supplemental information to investors regarding the underlying business trends and performance of its ongoing operations and are useful for period-over-period comparisons of those operations. The non-GAAP measures in this presentation include EBITDA, Adjusted EBITDA, Adjusted Operating EBITDA, and Free Cash Flow. These non-GAAP financial measures should be considered as supplemental to, and not as substitutes for or superior to, the financial measures prepared in accordance with GAAP. The definitions of these non-GAAP financial measures and reconciliations to the most comparable GAAP measures are provided in the section of this presentation titled Supplemental Information. Market and Industry Data This presentation includes market and industry data and certain other statistical information based on third-party sources, including independent industry publications, government publications and other published independent sources, such as content and estimates provided by the U.S. Energy Information Institute and industry content and figures provided by IHS Petrodata, Rystad Energy, Statzon, and Marketsandmarkets. Although we believe these third-party sources are reliable as of the dates of their respective use, we have not independently verified the accuracy or completeness of this information. Some data is also based on our own good faith estimates, which are supported by our management's knowledge of and experience in the markets and business in which we operate. OCEANEERING Ⓡ 3

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