Top Energy Companies in USA List by Market Cap as of August 2026

Williams Companies is an energy infrastructure company focused on connecting North America’s significant hydrocarbon resource plays to growing markets for natural gas and natural gas liquids (NGLs). Williams’ interstate gas pipeline and gathering & processing operations span the United States, including strategic assets in the deep water Gulf of Mexico, the Rockies, the Pacific Northwest and the Eastern Seaboard.

Williams owns and operates midstream gathering and processing assets, and interstate natural gas pipelines.

EMERSON ELECTRIC COMPANY is Electrical Goods and Electronics manufacturing company with headquarters is in USA. They build products related to automated solutions products, commercial and residential solutions.

As on 2022, EMERSON ELECTRIC COMPANY has 85,500 employees.

EMERSON ELECTRIC COMPANY annual revenue generated for period ending Sep-2022 was 19,629 million USD.

Cummins manufactures engines, generators and other power related equipment and engineering products. Headquarters is in Indiana, USA.

As on 2022, Cummins has 73,600 employees.

Cummins annual revenue generated for period ending Dec-2022 was 28,074 million USD.

Cummins annual net income generated for period ending Dec-2022 was 2,151 million USD.

ENTERPRISE PRODUCTS PARTNERS is Oil and Gas Company with headquarters is in Texas of USA. Enterprise Products Partners L.P. provides midstream energy services to producers and consumers of natural gas, natural gas liquids (NGLs), crude oil, refined products, and petrochemicals in the United States, Canada, and Gulf of Mexico.

As on 2021, ENTERPRISE PRODUCTS PARTNERS has 7,130 employees.

ENTERPRISE PRODUCTS PARTNERS annual revenue generated for period ending Dec-2022 was 58,186 million USD.

Schlumberger is the provider of technology services for Oil and Gas industry in the key areas of reservoir characterization, drilling, production, and processing. Schlumberger supplies the industry's most comprehensive range of products and services, from exploration through production and integrated pore-to-pipeline solutions for hydrocarbon recovery that optimize reservoir performance.

EOG RESOURCES is Oil and Gas sector exploration and production company with headquarters is in Texas, USA.

As on 2022, EOG RESOURCES has 2,850 employees.

EOG RESOURCES annual revenue generated for period ending Dec-2022 was 29,492 million USD.

EOG RESOURCES annual net income generated for period ending Dec-2022 was 7,759 million USD.

KINDER MORGAN is Oil and Gas pipelines infrastructure operating company with headquarters is in USA. Kinder Morgan is one of the largest energy infrastructure companies in North America. They own an interest in or operate approximately 84,000 miles of pipelines and 157 terminals.

Core operations include transportation, storage and terminalling for natural gas, crude oil, NGLs, refined products and liquid natural gas. Headquarters is in Texas, USA.

Energy Transfer acquired Enable Midstream Partners for 7 Billion USD as on Feb-2021.

Oil Field Services company with headquarters is in USA.

As on 2022, BAKER HUGHES COMPANY has 55,000 employees.

BAKER HUGHES COMPANY annual revenue generated for period ending Dec-2022 was 21,156 million USD.

BAKER HUGHES COMPANY annual net loss generated for period ending Dec-2022 was -601 (Loss) million USD.

DOMINION ENERGY is Energy company and Electricity Utility company with businesses in electricity and natural gas supply.

As on 2022, DOMINION ENERGY has 17,200 employees.

DOMINION ENERGY annual revenue generated for period ending Dec-2022 was 17,174 million USD.

DOMINION ENERGY annual net income generated for period ending Dec-2022 was 901 million USD.