ONE Gas (OGS) - Market capitalization

Market cap: S$5.94 Billion

As of December 2025 ONE Gas has a market cap of S$5.94 Billion. This makes ONE Gas the world's 3213th 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 ONE Gas from 2014 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	S$5.94 B	10.9%
2024	S$5.35 B	14.79%
2023	S$4.66 B	-15.09%
2022	S$5.49 B	-2.23%
2021	S$5.62 B	4.24%
2020	S$5.39 B	-18.99%
2019	S$6.65 B	16.46%
2018	S$5.71 B	11.6%
2017	S$5.12 B	5.91%
2016	S$4.83 B	30.41%
2015	S$3.70 B	30.74%
2014	S$2.83 B

End of Day market cap according to different sources

On Dec 11th, 2025 the market cap of ONE Gas was reported to be:

S$5.96 Billion

by Nasdaq

S$5.96 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Atmos Energy ATO	S$35.18 B	492.33%	🇺🇸 USA
NW Natural NWN	S$2.49 B	-58.07%	🇺🇸 USA
RGC Resources RGCO	S$0.30 B	-94.89%	🇺🇸 USA
CenterPoint Energy CNP	S$31.82 B	435.69%	🇺🇸 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 ONE Gas (OGS)

Market cap: S$5.94 Billion