List of largest oil and gas companies by revenue

Total revenue of oil and gas companies is listed in billions of U.S. dollars.

Total revenue is usually self-reported by the company, and often reported by neutral, unbiased, reliable publications.

Reported data may be subsequently revised or restated due to a wide range of issues such as exchange rates, contract settlements, or mid-year discontinuation of products or services.

[1] For state-owned oil corporations, the list below is also partially sourced from data provided by Statista[2] and the Sovereign Wealth Fund Institute.

[3] This list provides data for parent companies, not each subsidiary.