With a market capitalization (market cap) of $28.46B — a measure of how much the company is worth — Atmos Energy Corporation is the 486th most valuable company in Utilities as of August 18, 2026. Shares trade at $170.51, up +0.36% on the day.
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Atmos Energy Corporation, alongside its subsidiaries, is a U.S.-based enterprise primarily involved in the regulated distribution of natural gas, as well as operating pipeline and storage facilities. The company functions through two core divisions: Distribution, and Pipeline and Storage. The Distribution division manages the regulated delivery and associated sales of natural gas across eight states. This division supplies natural gas to approximately three million customers, encompassing homeowners, businesses, public agencies, and industrial clients. By September 30, 2021, its extensive infrastructure comprised 71,921 miles of subterranean distribution and transmission lines. Conversely, the Pipeline and Storage division focuses on pipeline and storage activities. It is responsible for transporting natural gas on behalf of other entities and oversees five underground storage facilities located in Texas. Additionally, it offers various support services to the pipeline sector, such as gas parking, lending, and inventory transactions. As of September 30, 2021, this division maintained a network of 5,699 miles of gas transmission lines. Established in 1906, Atmos Energy Corporation maintains its principal office in Dallas, Texas.
Visit websiteAs of August 18, 2026, Atmos Energy Corporation (ATO) is worth $28.46B — this is its market capitalization, the total value of all its outstanding shares.
Atmos Energy Corporation’s market cap is $28.46B, which ranks it #486 among the most valuable companies in the Utilities sector tracked on MarketCapLens.
Atmos Energy Corporation (ATO) shares trade at $170.51, up 0.36% on the day, as of August 18, 2026.
Fundamentals are annual. Figures labeled with their fiscal year.
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Atmos Energy Corporation trades at a price-to-earnings (P/E) ratio of 22.6, based on its latest share price and annual earnings per share.