ExxonMobil is the world’s largest publicly traded international oil and gas company. We hold an industry-leading inventory of global oil and gas resources. We are the world’s largest refiner and marketer of petroleum pr......ExxonMobil is the world’s largest publicly traded international oil and gas company. We hold an industry-leading inventory of global oil and gas resources. We are the world’s largest refiner and marketer of petroleum products, and our chemical company ranks among the world’s largest. We are also a technology company, applying science and innovation to find better, safer and cleaner ways to deliver the energy the world needs. Over the last 125 years ExxonMobil has evolved from a regional marketer of kerosene in the U.S. to the largest publicly traded petroleum and petrochemical enterprise in the world. Today we operate in most of the worlds countries and are best known by our familiar brand names: Exxon, Esso and Mobil. We make the products that drive modern transportation, power cities, lubricate industry and provide petrochemical building blocks that lead to thousands of consumer goods. Learn more by using the slider or the arrows below to browse our history over time. ExxonMobil uses innovation and technology to deliver energy and petrochemical products to meet the world’s growing demand. Our people, technical expertise, financial strength, and global reach provide a competitive advantage and ensure broad exposure to high-quality opportunities—from conventional exploration to opportunities that require close integration across our businesses. Our extensive research programs support operations, enable continuous improvement in each of our business lines, and explore new and emerging energy sources and technologies. The Corporation comprises 10 separate companies, making up the Upstream, Downstream, and Chemical businesses.