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The desert kingdom has around 16% of the worldâs proven oil reserves and is the biggest global exporter of petroleum liquids. There is little doubt as to why its national oil company, Saudi Aramco, the biggest energy company in the world, generates over $1 billion in revenue every single day.
Excerpt from Petroleum Refining Industry Profile. Companies in this industry refine crude oil to produce fuel and other products. Major companies include Chevron, Exxon Mobil, and Valero (headquartered in the US); BP (UK); and Royal Dutch Shell (the Netherlands).Worldwide, the petroleum refining industry processes about 95 million barrels of crude oil each day, including about 18 million barrels per day refined in the US.The countries with the largest refining capacity are the US, China, Russia, India, Japan, and South Korea.ajor companies include Chevron, Exxon Mobil, and Valero (headquartered in the US); BP (UK); and Royal Dutch Shell (the Netherlands). Worldwide, the petroleum refining industry processes about 95 million barrels of crude oil each day, including about 18 million barrels per day refined in the US.