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Oceaneering International, Inc. (OII) is an energy company in the petroleum facility building services industry, based in Houston, United States, with about 11,100 full-time employees.
It reported revenue of $2.78 billion for fiscal year 2025, up 4.6% from fiscal year 2024, and net income of $353.76 million. In Q2 2026 (the quarter ended June 30, 2026) revenue was $768.18 million, up 10.0% from a year before. Its largest business segment, Energy - Subsea Robotics, brought in 31% of segment revenue in fiscal year 2025; United States was the largest region with 45%. Its market capitalization was $4.46 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
Oceaneering International, Inc. provides engineered services and products and robotic solutions to the offshore energy, defense, aerospace, and manufacturing industries in the United States, Africa, the United Kingdom, Norway, Brazil, Asia, Australia, and internationally.
Oceaneering International reported $2.78 billion in revenue for fiscal year 2025, up 4.6% from $2.66 billion in fiscal year 2024. In Q2 2026 revenue was $768.18 million.
Energy - Subsea Robotics, with $855.22 million or 31% of segment revenue in fiscal year 2025. Next: Energy - Offshore Projects Group (22%) and Energy - Manufactured Products (20%).
United States: 45% of revenue by region in fiscal year 2025, followed by Africa (15%).
$4.46 billion as of October 9, 2026.
Listed companies of a similar size in the same industry (petroleum facility building services) include TechnipFMC plc (FTI), North American Construction Group Ltd. (NOA), Koil Energy Solutions, Inc. (KLNG), Geopulse Exploration, Inc. (GPLS).