TotalMarketCap

Oceaneering International

OIINYSE United StatesEnergyOilfield Services/Equipment

Market cap

$3.384 B

$34.03 -6.49%

Close of 6 Nov 2026

As of 6 Nov 2026, Oceaneering International (OII) has a market capitalization of $3.38B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$2.78B

#959 by revenue

Earnings

—

Not reported

Shares outstanding

99,428,607

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Oilfield Services/Equipment, ranked by market cap

All 20 →
  1. #1SlbSLB$73.4B
  2. #2HalliburtonHAL$26.4B
  3. #3Oceaneering InternationalOII$3.38B
  4. #4WaterBridge InfrastructureWBI$2.98B
  5. #5Select Water SolutionsWTTR$2.23B

What if Oceaneering International were worth as much as…

Open the what-if tool →

Gold $28.2T

$283,991.45

Per share 8,345× higher

Bitcoin $1.53T

$15,366.28

Per share 452× higher

Apple $5.02T

$50,446.07

Per share 1,482× higher

Or at a round number

$5.00B$10.0B$20.0B$50.0B

Where these numbers come from

Share counts and financials for Oceaneering International are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.