Oceaneering International Inc (NYSE:OII) — Market Cap & Net Worth

$4.61 Billion USD  · Rank #3778

Market Cap & Net Worth: Oceaneering International Inc (OII)

Oceaneering International Inc (NYSE:OII) has a market capitalization of $4.61 Billion ($4.61 Billion) as of September 21, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #3778 globally and #1316 in its home market, demonstrating a -8.46% decrease in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying Oceaneering International Inc's stock price $46.29 by its total outstanding shares 99529645 (99.53 Million). Also see Oceaneering International Inc asset portfolio for a full breakdown of the balance sheet.

Oceaneering International Inc Market Cap History: 2015 to 2026

Oceaneering International Inc's market capitalization history from 2015 to 2026. Data shows growth from $3.55 Billion to $4.61 Billion (0.59% CAGR). Also see cash efficiency ratio of Oceaneering International Inc for how efficiently the company converts equity into cash flow.

Index Memberships

Oceaneering International Inc is a constituent of 2 market indices:

Index Total Market Cap Weight (%) Rank by Market Cap
Dow Jones Oil & Gas
DJUSEN
$2.32 Trillion 0.20% #33 of 77
S&P Small-Cap 600 Index
SML
$1.61 Trillion 0.14% #87 of 602

Weight: Oceaneering International Inc's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

Oceaneering International Inc Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how Oceaneering International Inc's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check OII live share price for real-time trading data and today's change.

Latest Price to Sales (P/S) Ratio

0.86x

Oceaneering International Inc's market cap is 0.86 times its annual revenue

Industry average: 0.98x Lower than industry average

Latest Price to Earnings (P/E) Ratio

6.76x

Oceaneering International Inc's market cap is 6.76 times its annual earnings

Industry average: 6.58x Higher than industry average

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $2.76 Billion $2.27 Billion $24.59 Million 1.21x 112.21x
2017 $2.10 Billion $1.92 Billion $166.40 Million 1.10x 12.64x
2018 $1.20 Billion $1.91 Billion -$212.33 Million 0.63x N/A
2019 $1.48 Billion $2.05 Billion -$348.44 Million 0.72x N/A
2020 $791.26 Million $1.83 Billion -$496.75 Million 0.43x N/A
2021 $1.13 Billion $1.87 Billion -$49.31 Million 0.60x N/A
2022 $1.74 Billion $2.07 Billion $25.94 Million 0.84x 67.11x
2023 $2.12 Billion $2.42 Billion $97.40 Million 0.87x 21.74x
2024 $2.60 Billion $2.66 Billion $147.47 Million 0.98x 17.60x
2025 $2.39 Billion $2.78 Billion $353.76 Million 0.86x 6.76x

Competitor Companies of OII by Market Capitalization

Companies near Oceaneering International Inc in the global market cap rankings as of September 21, 2026. Review Oceaneering International Inc tangible equity quality to assess the quality of the company's equity after excluding intangible assets.

Key companies related to Oceaneering International Inc by market ranking:

  • Schlumberger NV (NYSE:SLB): Ranked #368 globally with a market cap of $74.99 Billion USD.
  • Baker Hughes Co (NASDAQ:BKR): Ranked #481 globally with a market cap of $56.83 Billion USD.
  • TechnipFMC PLC (NYSE:FTI): Ranked #984 globally with a market cap of $27.27 Billion USD.
  • Halliburton Company (NYSE:HAL): Ranked #1010 globally with a market cap of $26.57 Billion USD.
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#368 Schlumberger NV NYSE:SLB $74.99 Billion $51.12
#481 Baker Hughes Co NASDAQ:BKR $56.83 Billion $57.25
#984 TechnipFMC PLC NYSE:FTI $27.27 Billion $72.02
#1010 Halliburton Company NYSE:HAL $26.57 Billion $33.64

Oceaneering International Inc Historical Marketcap From 2015 to 2026

Between 2015 and today, Oceaneering International Inc's market cap moved from $3.55 Billion to $ 4.61 Billion, with a yearly change of 0.59%.

Year Market Cap Change (%)
2026 $4.61 Billion +92.63%
2025 $2.39 Billion -7.86%
2024 $2.60 Billion +22.56%
2023 $2.12 Billion +21.67%
2022 $1.74 Billion +54.64%
2021 $1.13 Billion +42.26%
2020 $791.26 Million -46.68%
2019 $1.48 Billion +23.22%
2018 $1.20 Billion -42.76%
2017 $2.10 Billion -23.73%
2016 $2.76 Billion -22.23%
2015 $3.55 Billion --

End of Day Market Cap According to Different Sources

On Sep 21st, 2026 the market cap of Oceaneering International Inc was reported to be:

Source Market Cap
Yahoo Finance $4.61 Billion USD
MoneyControl $4.61 Billion USD
MarketWatch $4.61 Billion USD
marketcap.company $4.61 Billion USD
Reuters $4.61 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About Oceaneering International Inc

NYSE:OII USA Oil & Gas Equipment & Services
Market Cap
$4.61 Billion
Market Cap Rank
#3778 Global
#1316 in USA
Share Price
$46.29
Change (1 day)
+0.19%
52-Week Range
$22.20 - $54.11
All Time High
$54.11
About

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. It operates through five segments: Subsea Robotics, Manufactured Products, Offshore Projects Group, Integrity Management & Dig… Read more