As one of the largest independent refiners and marketers of petroleum products in the United States, Tesoro plays an integral role in fueling the communities we serve. Every day we create a safer and cleaner future as efficient providers of reliable transportation fuel solutions. Tesoro safely, efficiently and reliably operates an integrated network of strategic assets that create and sell refined petroleum products, from feedstock acquisition to wholesale, commercial and retail sales outlets. Tesoro refines crude oil and other feedstocks into transportation fuels, such as conventional and CARB gasoline, diesel fuel, jet fuel and other petroleum products.
Company Growth (employees)