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Source: CNN Money. Exxon is the second largest company in the US as far as revenues go. However, its revenues have dropped by more than 7 percent from the previous year along with decreased oil production and increasing exploration expenditures.
Largest company: ChevronRevenue: $212.0 billionHeadquarters: San Ramon, CAOwnership: PublicChevron is one of the largest oil companies in the world. With revenues of $212 billion, Chevron is also the largest company in California, beating out the 52 other California-based Fortune 500 companies.