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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.
Chevron is the worldâs third largest company according to the Fortune Global 500 in 2014. Chevron is the direct descendant of Standard Oil Company and was established after the merging of Standard Oil of California and Gulf Oil in 1984. John S. Watson currently serves as the CEO of the company.