Petróleo Brasileiro S.A. - Petrobras explores for, produces, and sells oil and gas in Brazil and internationally. The company operates through Exploration and Production; Refining, Transportation and Marketing; Gas and Power; and Corporate and Other Businesses segments.

Equinor ASA, an energy company, engages in the exploration, production, transportation, refining, and marketing of petroleum and petroleum-derived products, and other forms of energy in Norway and internationally.

Eni S.p.A. engages in the exploration, development, and production of crude oil and natural gas. It operates through Exploration & Production; Global Gas & LNG Portfolio; Refining & Marketing and Chemicals; Plenitude and Power; and Corporate and Other activities segments.

Cenovus Energy Inc., together with its subsidiaries, develops, produces, and markets crude oil, natural gas liquids, and natural gas in Canada, the United States, and the Asia Pacific region.

Petróleo Brasileiro S.A. - Petrobras explores for, produces, and sells oil and gas in Brazil and internationally. The company operates through Exploration and Production; Refining, Transportation and Marketing; Gas and Power; and Corporate and Other Businesses segments.

YPF Sociedad Anónima, an energy company, engages in the oil and gas upstream and downstream activities in Argentina. The company's upstream operations include the exploration, development, and production of crude oil, natural gas, and NGLs. Its downstream operations include the refining, marketing, transportation, and distribution of oil, petroleum products, petroleum derivatives, petrochemicals, LPG, and bio-fuels, as well as in gas separation, natural gas distribution operations, and power generation.

BP p.l.c. provides carbon products and services. The company operates through Gas & Low Carbon Energy, Oil Production & Operations, and Customers & Products segments.

Shell plc operates as an energy and petrochemical company Europe, Asia, Oceania, Africa, the United States, and Rest of the Americas.

TotalEnergies SE operates as an integrated oil and gas company worldwide. The company operates through four segments: Integrated Gas, Renewables & Power; Exploration & Production; Refining & Chemicals; and Marketing & Services.

National Fuel Gas Company operates as a diversified energy company. It operates through four segments: Exploration and Production, Pipeline and Storage, Gathering, and Utility.

Transportadora de Gas del Sur S.A. engages in transportation of natural gas, production, and commercialization of natural gas liquids in Argentina.