World Top 100 Energy Companies List by Market Cap as of August 2026

Viva Energy Group is a Energy company. It help Australians reach their destinations by making, importing and delivering the fuels, lubricants, chemicals and bitumen they need to get there. The company is having around 700 employees and pumping millions of dollars into the local economy through wages and services and more than 22 fuel import terminals around the country. The headquarters is in Australia.

Avista Corporation is a Energy company. It involved in the production, transmission and distribution of energy as well as other energy related businesses. The company operating division, providing electricity to nearly 3,40,000 customers and natural gas to about 3,00,000 customers across 30,000 square miles and four northwestern states. The headquarters is in USA.

Alliance Resource Partners is a Diversified Coal Producer and Marketer with Significant Operations in the Eastern United States. The headquarters is in USA.

NexTier Oilfield Solutions provides engineering services for oil and gas drilling and production services. It combines approximately 2.2 million hydraulic horsepower and the latest downhole fracturing technology with well specific designs for fluids and equipment configurations to increase overall production. The headquarters is in USA.

Patterson-UTI acquired Nextier Oilfield Solutions and they were merged in 2023. Post that NexTier Oilfield Solutions is delisted and only Patterson-UTI will be trading on stock exchanges.

Plug Power is a Electrical Equipment Manufacturing company. The company annual revenue is 230.2 million USD and 835 employees as on 2019. The headquarters is in USA.

Mangalore Refinery and Petrochemicals Limited (MRPL) is a oil refining and petroleum products producing company and it produces products like Naphtha, LPG, Motor Spirit, High-Speed Diesel, Kerosene, Aviation Turbine Fuel, Sulphur, Xylene, Bitumen along with Pet Coke and Polypropylene.  The headquarters is in India.