ExxonMobil

Exxon Mobil Corporation is an American multinational oil and gas corporation headquartered in Spring, Texas, a suburb of Houston. Founded as the largest direct successor of John D. Rockefeller's Standard Oil, the company was formed in 1999, with the merger of Exxon and Mobil. It is vertically integrated across the entire oil and gas industry, as well as within its chemicals division, which produces plastic, synthetic rubber, and other chemical products. As the largest U.S.-based oil and gas company, ExxonMobil is the eighth-largest company by revenue in the U.S. and 13th-largest in the world. It is also the largest investor-owned oil company in the world. Approximately 55.56% of the company's shares are held by institutions, the largest of which, as of 2019, were The Vanguard Group (8.15%), BlackRock (6.61%), and State Street Corporation (4.83%).