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Being the biggest oil company in Russia, Rosneft is also the largest publicly traded company in the world based on its hydrocarbon production volume. BP holds a 19.75 % share in Rosneft which makes it a beneficiary to a broad range of existing and future projects in Russia, a country that has huge hydrocarbon resources.
The company's Shell Exploration & Production unit focuses its exploration on the deepwater plays in the Gulf of Mexico. Shell Oil partners with Saudi Aramco in a US refining and marketing venture (Motiva) and owns Motiva's sister company Shell Oil Products US. Shell Oil also produces petrochemicals (Shell Chemical) and liquefied natural gas (Shell US Gas & Power) and markets natural gas and electricity. Shell Oil's parent, Royal Dutch Shell, vies with Exxon Mobil) to be the world's #1 integrated oil company in terms of revenues.