Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” in the Registration Statement (FormS-3) and related Prospectus of Oceaneering International, Inc. for the registration of debt securities and to the incorporation by reference therein of our reports dated February 24, 2017, with respect to the consolidated financial statements of Oceaneering International, Inc. and the effectiveness of internal control over financial reporting of Oceaneering International, Inc. included in its Annual Report (Form10-K) for the year ended December 31, 2016, filed with the Securities and Exchange Commission.
/s/ ERNST & YOUNG LLP
Houston, Texas
January 30, 2018
