CNOOC (0883.HK) - Market capitalization

Market cap: HK$1.089 Trillion

As of December 2025 CNOOC has a market cap of HK$1.089 Trillion. This makes CNOOC the world's 142th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of CNOOC from 2004 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	HK$1.089 T	17.94%
2024	HK$924.08 B	42.5%
2023	HK$648.48 B	30.32%
2022	HK$497.59 B	38.79%
2021	HK$358.51 B	11.22%
2020	HK$322.35 B	-44.29%
2019	HK$578.63 B	7.11%
2018	HK$540.23 B	7.9%
2017	HK$500.69 B	15.62%
2016	HK$433.05 B	20.19%
2015	HK$360.30 B	-22.7%
2014	HK$466.11 B	-27.6%
2013	HK$643.81 B	-14.06%
2012	HK$749.16 B	23.59%
2011	HK$606.17 B	-26.41%
2010	HK$823.70 B	50.65%
2009	HK$546.75 B	69.06%
2008	HK$323.40 B	-43.8%
2007	HK$575.40 B	79.87%
2006	HK$319.90 B	51.31%
2005	HK$211.42 B	23.33%
2004	HK$171.43 B

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of CNOOC (0883.HK)