Oceaneering International, Inc. ("Oceaneering") (NYSE:OII) announced its participation at upcoming investor conferences during the fourth quarter of 2025.

Bank of America Securities Global Energy Conference

Houston, TX – November 11, 2025

Alan Curtis, Chief Financial Officer, and Hilary Frisbie, Senior Director of Investor Relations, will meet with institutional investors.

Baird Defense & Government Conference

Tysons Corner, VA – November 18, 2025

Rod Larson, President and Chief Executive Officer, will present on Oceaneering's Aerospace and Defense Technologies ("ADTech") segment. Bill Merz, Senior Vice President of ADTech, will participate in a panel discussion on "The Future of Autonomous Maritime."

TD Cowen Energy Conference

New York, NY – November 18-19, 2025

Alan Curtis, Chief Financial Officer, will participate in a panel discussion on Offshore Services. Mr. Curtis and Hilary Frisbie, Senior Director of Investor Relations, will also meet with institutional investors.

Oceaneering's most recent presentation is available on the Investor Relations page of Oceaneering's website at https://investors.oceaneering.com/presentations-webcasts/default.aspx.

Oceaneering is a global technology company delivering engineered services and products and robotic solutions to the offshore energy, defense, aerospace, and manufacturing industries.

For more information, please visit www.oceaneering.com.

View source version on businesswire.com: https://www.businesswire.com/news/home/20251103545645/en/

Hilary Frisbie

Senior Director, Investor Relations

713-329-4755

investorrelations@oceaneering.com

Oceaneering Announces Participation at Upcoming Investor Conferences