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

$3.78 Billion USD  · Rank #4242

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

Oceaneering International Inc (NYSE:OII) has a market capitalization of $3.78 Billion ($3.78 Billion) as of August 7, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #4242 globally and #1466 in its home market, demonstrating a 0.17% increase 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 $48.07 by its total outstanding shares 99745249 (99.75 Million). See OII capex to operating cash flow ratio to understand how much of operating cash flow is reinvested back into capital assets.

Oceaneering International Inc Market Cap History: 2015 to 2026

Oceaneering International Inc's market capitalization history from 2015 to 2026. Data shows growth from $3.56 Billion to $4.79 Billion (0.95% CAGR).

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
$2.26 Trillion 0.17% #34 of 77
S&P Small-Cap 600 Index
SML
$1.61 Trillion 0.14% #131 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.

Latest Price to Sales (P/S) Ratio

0.86x

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

Industry average: 1.12x Lower than industry average

Latest Price to Earnings (P/E) Ratio

6.78x

Oceaneering International Inc's market cap is 6.78 times its annual earnings

Industry average: 8.03x Lower 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 1.22x 112.45x
2017 $2.11 Billion $1.92 Billion $166.40 Million 1.10x 12.67x
2018 $1.21 Billion $1.91 Billion -$212.33 Million 0.63x N/A
2019 $1.49 Billion $2.05 Billion -$348.44 Million 0.73x N/A
2020 $792.97 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 67.25x
2023 $2.12 Billion $2.42 Billion $97.40 Million 0.88x 21.79x
2024 $2.60 Billion $2.66 Billion $147.47 Million 0.98x 17.64x
2025 $2.40 Billion $2.78 Billion $353.76 Million 0.86x 6.78x

Competitor Companies of OII by Market Capitalization

Companies near Oceaneering International Inc in the global market cap rankings as of August 7, 2026.

Key companies related to Oceaneering International Inc by market ranking:

  • Schlumberger NV (NYSE:SLB): Ranked #365 globally with a market cap of $74.62 Billion USD.
  • Baker Hughes Co (NASDAQ:BKR): Ranked #494 globally with a market cap of $54.04 Billion USD.
  • TechnipFMC PLC (NYSE:FTI): Ranked #984 globally with a market cap of $27.27 Billion USD.
  • Halliburton Company (NYSE:HAL): Ranked #1006 globally with a market cap of $26.58 Billion USD.
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#365 Schlumberger NV NYSE:SLB $74.62 Billion $49.91
#494 Baker Hughes Co NASDAQ:BKR $54.04 Billion $61.67
#984 TechnipFMC PLC NYSE:FTI $27.27 Billion $69.27
#1006 Halliburton Company NYSE:HAL $26.58 Billion $31.82

Oceaneering International Inc Historical Marketcap From 2015 to 2026

Between 2015 and today, Oceaneering International Inc's market cap moved from $3.56 Billion to $ 4.79 Billion, with a yearly change of 0.95%.

Year Market Cap Change (%)
2026 $4.79 Billion +100.04%
2025 $2.40 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 $792.97 Million -46.68%
2019 $1.49 Billion +23.22%
2018 $1.21 Billion -42.76%
2017 $2.11 Billion -23.73%
2016 $2.76 Billion -22.23%
2015 $3.56 Billion --

End of Day Market Cap According to Different Sources

On Aug 6th, 2026 the market cap of Oceaneering International Inc was reported to be:

Source Market Cap
Yahoo Finance $3.78 Billion USD
MoneyControl $3.78 Billion USD
MarketWatch $3.78 Billion USD
marketcap.company $3.78 Billion USD
Reuters $3.78 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
$4.79 Billion
Market Cap Rank
#4242 Global
#1466 in USA
Share Price
$48.07
Change (1 day)
-4.68%
52-Week Range
$21.36 - $52.73
All Time High
$52.73
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