Aramco Saudi Arabia
ExxonMobil America
Petrochina China
British Petroleum
Chevron America
Russian Gazprom

The map shows the 20 largest oil and gas companies in the world in 2021. Iran, despite having the third largest oil reserves and the second largest gas reserves in the world, is not among the 20 largest oil companies due to sanctions, worn-out infrastructure, export inability and domestic inefficiency.  The world’s top oil companies are currently as follows:

Aramco Saudi Arabia
ExxonMobil America
Petrochina China
British Petroleum
Chevron America
Russian Gazprom

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