Occidental Petroleum (OXY) - Market capitalization

Market cap: A$58.99 Billion

As of December 2025 Occidental Petroleum has a market cap of A$58.99 Billion. This makes Occidental Petroleum the world's 593th 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 Occidental Petroleum from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	A$58.99 B	-19.47%
2024	A$73.25 B	-4.75%
2023	A$76.91 B	-8.58%
2022	A$84.13 B	125.27%
2021	A$37.34 B	78.16%
2020	A$20.96 B	-60.17%
2019	A$52.62 B	-19.4%
2018	A$65.29 B	-9.57%
2017	A$72.20 B	-4.39%
2016	A$75.51 B	6.55%
2015	A$70.87 B	-6.62%
2014	A$75.90 B	-10.56%
2013	A$84.86 B	42.91%
2012	A$59.38 B	-19.95%
2011	A$74.18 B	-5.49%
2010	A$78.49 B	6.76%
2009	A$73.52 B	6.77%
2008	A$68.86 B	-5.62%
2007	A$72.96 B	40.05%
2006	A$52.09 B	18.65%
2005	A$43.90 B	46.76%
2004	A$29.91 B	36.03%
2003	A$21.99 B	15.27%
2002	A$19.08 B	-1.89%
2001	A$19.44 B	21.2%
2000	A$16.04 B	32.54%
1999	A$12.10 B	26.34%
1998	A$9.58 B	-37.56%
1997	A$15.34 B	58.44%
1996	A$9.68 B

End of Day market cap according to different sources

On Dec 18th, 2025 the market cap of Occidental Petroleum was reported to be:

A$59.15 Billion

by Nasdaq

A$59.14 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Marathon Oil MRO	A$24.13 B	-59.09%	🇺🇸 USA
ConocoPhillips COP	A$173.54 B	194.19%	🇺🇸 USA
Hess HES	A$69.61 B	18.02%	🇺🇸 USA
Chevron CVX	A$449.35 B	661.72%	🇺🇸 USA
Exxon Mobil XOM	A$750.80 B	1,172.73%	🇺🇸 USA
Devon Energy DVN	A$34.42 B	-41.65%	🇺🇸 USA
APA Corporation APA	A$13.04 B	-77.89%	🇺🇸 USA
EOG Resources EOG	A$84.15 B	42.66%	🇺🇸 USA
Southwestern Energy SWN	A$11.85 B	-79.91%	🇺🇸 USA
Williams Companies WMB	A$107.90 B	82.92%	🇺🇸 USA

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 Occidental Petroleum (OXY)

Market cap: A$58.99 Billion