Occidental Petroleum (OXY) - Market capitalization

Market cap: A$79.78 Billion

As of June 2026 Occidental Petroleum has a market cap of A$79.78 Billion. This makes Occidental Petroleum the world's 444th 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$79.78 B	36.11%
2025	A$58.61 B	-19.99%
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 Jun 12th, 2026 the market cap of Occidental Petroleum was reported to be:

A$79.75 Billion

by Nasdaq

A$79.78 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
APA Corporation APA	A$18.56 B	-76.73%	🇺🇸 USA
ConocoPhillips COP	A$202.18 B	153.42%	🇺🇸 USA
EOG Resources EOG	A$103.25 B	29.42%	🇺🇸 USA
Marathon Oil MRO	A$22.65 B	-71.60%	🇺🇸 USA
Williams Companies WMB	A$125.06 B	56.75%	🇺🇸 USA
Exxon Mobil XOM	A$864.48 B	983.54%	🇺🇸 USA
Chevron CVX	A$528.98 B	563.03%	🇺🇸 USA
Devon Energy DVN	A$74.14 B	-7.07%	🇺🇸 USA
Hess HES	A$65.36 B	-18.07%	🇺🇸 USA
Southwestern Energy SWN	A$11.12 B	-86.06%	🇺🇸 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$79.78 Billion