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

Diamondback is an independent oil and natural gas company headquartered in Midland, Texas focused on the acquisition, development, exploration and exploitation of unconventional, onshore oil and natural gas reserves in the Permian Basin in West Texas. Diamondback's activities are primarily focused on the horizontal exploitation of multiple intervals within the Wolfcamp, Spraberry, Clearfork, Bone Spring and Cline formations.

As on 2022, DIAMONDBACK ENERGY has 972 employees.

ROSNEFT OIL COMPANY is Petroleum Refining, Oil and Gas company with headquarters is in Moscow, Russia.

CHENIERE ENERGY is liquefied natural gas company. It owns and operates LNG terminals, and develops, constructs, and operates liquefaction. The company operates through two segments: LNG terminal business, and LNG and natural gas marketing business. The company conducts its business through its subsidiaries, including the development, construction and operation of its LNG terminal business and natural gas marketing business. The headquarters is in USA.

Electricity Generation and Electricity Distribution (Electric Utility) company with headquarters is in Germany.

Oil and Gas Exploration and Production company with headquarters is in Oklahoma, USA.

Electric Power Generation and Electricity Distribution (Electric Utility) company with headquarters is in USA.

As on 2022, ENTERGY CORPORATION has 11,707 employees.

ENTERGY CORPORATION annual revenue generated for period ending Dec-2022 was 13,764 million USD.

ENTERGY CORPORATION annual net income generated for period ending Dec-2022 was 1,103 million USD.

Endesa is Electric Utilities company with headquarters is in Madrid, Spain. Generates electricity and distributes electricity.

Endesa is second biggest operator in the electricity market in Portugal. The company annual revenue is 20.2 billion EUR and 9,761 employees as on 2019.

Xcel Energy is Electric Utility and Gas Utility company with headquarters is in USA.

PKN Orlen is a Player on the Fuels and Energy Markets company. It capable of processing more than 35 million tonnes of various crude oil types per annum and network of over 2,800 modern service stations. It offering includes over 50 top quality petrochemical and refining products sold in more than 90 countries around the world on 6 continents. The company is also an important player on the Polish power market, ranking as the industrial electricity producer with a capacity of 1.9 GW. The headquarters is in Poland.

POLSKI KONCERN NAFTOWY ORLEN SPOLKA AKCYJNA is an integrated, multi-utility company, operating in Central Europe and Canada. The company provide energy and fuel to over 100 million of Europeans, while its advanced products are marketed to over 90 countries across 6 continents. This innovative product will be made from used cooking oils. Headquarters is in Poland.