OGE Energy (OGE) - Market capitalization

Market cap: £6.67 Billion

As of February 2026 OGE Energy has a market cap of £6.67 Billion. This makes OGE Energy the world's 2164th 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 OGE Energy from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£6.67 B	1.94%
2025	£6.54 B	-0.99%
2024	£6.61 B	20.43%
2023	£5.49 B	-16.1%
2022	£6.54 B	14.99%
2021	£5.69 B	21.74%
2020	£4.67 B	-31.1%
2019	£6.78 B	10.06%
2018	£6.16 B	26.79%
2017	£4.86 B	-10.17%
2016	£5.41 B	52.81%
2015	£3.54 B	-22.04%
2014	£4.54 B	11.39%
2013	£4.07 B	18.52%
2012	£3.44 B	-3.79%
2011	£3.57 B	24.26%
2010	£2.87 B	30.21%
2009	£2.21 B	35.49%
2008	£1.63 B	-2.68%
2007	£1.67 B	-10.11%
2006	£1.86 B	32.58%
2005	£1.40 B	13.24%
2004	£1.24 B	5.13%
2003	£1.18 B	37.16%
2002	£0.86 B	-30.59%
2001	£1.24 B	-2.69%
2000	£1.27 B	39.35%
1999	£0.91 B	-35.03%
1998	£1.40 B	4.81%
1997	£1.34 B	36.56%
1996	£0.98 B

End of Day market cap according to different sources

On Feb 5th, 2026 the market cap of OGE Energy was reported to be:

£6.65 Billion

by Nasdaq

£6.67 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
American Electric Power AEP	£47.53 B	612.11%	🇺🇸 USA
CenterPoint Energy CNP	£19.33 B	189.64%	🇺🇸 USA
Dominion Energy D	£39.30 B	488.88%	🇺🇸 USA
Edison International EIX	£18.05 B	170.44%	🇺🇸 USA
NRG Energy NRG	£22.96 B	243.96%	🇺🇸 USA
Nextera Energy NEE	£136.80 B	1,949.34%	🇺🇸 USA
Duke Energy DUK	£70.66 B	958.60%	🇺🇸 USA
Entergy ETR	£31.86 B	377.29%	🇺🇸 USA
PG&E Corporation PCG	£26.34 B	294.69%	🇺🇸 USA
Avista AVA	£2.54 B	-61.94%	🇺🇸 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 OGE Energy (OGE)

Market cap: £6.67 Billion