Market capitalization of Occidental Petroleum (OXY)

Market cap: NZ$67.79 Billion

As of December 2025 Occidental Petroleum has a market cap of NZ$67.79 Billion. This makes Occidental Petroleum the world's 590th 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	NZ$67.79 B	-16.1%
2024	NZ$80.79 B	-2.49%
2023	NZ$82.85 B	-8.11%
2022	NZ$90.17 B	127.48%
2021	NZ$39.64 B	77.44%
2020	NZ$22.34 B	-59.17%
2019	NZ$54.71 B	-20.22%
2018	NZ$68.57 B	-13.6%
2017	NZ$79.36 B	1%
2016	NZ$78.58 B	4.17%
2015	NZ$75.43 B	-4.85%
2014	NZ$79.28 B	-13.93%
2013	NZ$92.11 B	22.8%
2012	NZ$75.01 B	-23.03%
2011	NZ$97.46 B	-5.7%
2010	NZ$103.35 B	13.65%
2009	NZ$90.93 B	8.62%
2008	NZ$83.72 B	0.53%
2007	NZ$83.28 B	42.86%
2006	NZ$58.29 B	24.02%
2005	NZ$47.00 B	44.87%
2004	NZ$32.44 B	29.01%
2003	NZ$25.15 B	22.44%
2002	NZ$20.54 B	-14.06%
2001	NZ$23.90 B	18.06%
2000	NZ$20.24 B	32.99%
1999	NZ$15.22 B	36.73%
1998	NZ$11.13 B	-35.38%
1997	NZ$17.23 B	58.19%
1996	NZ$10.89 B

End of Day market cap according to different sources

On Dec 19th, 2025 the market cap of Occidental Petroleum was reported to be:

NZ$67.73 Billion

by Nasdaq

NZ$67.79 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Marathon Oil MRO	NZ$27.73 B	-59.08%	🇺🇸 USA
ConocoPhillips COP	NZ$199.42 B	194.17%	🇺🇸 USA
Hess HES	NZ$80.01 B	18.03%	🇺🇸 USA
Chevron CVX	NZ$516.99 B	662.64%	🇺🇸 USA
Exxon Mobil XOM	NZ$863.97 B	1,174.47%	🇺🇸 USA
Devon Energy DVN	NZ$39.51 B	-41.71%	🇺🇸 USA
APA Corporation APA	NZ$14.98 B	-77.89%	🇺🇸 USA
EOG Resources EOG	NZ$96.65 B	42.58%	🇺🇸 USA
Southwestern Energy SWN	NZ$13.61 B	-79.91%	🇺🇸 USA
Williams Companies WMB	NZ$123.56 B	82.27%	🇺🇸 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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