Rosneft is a major Russian oil company, primarily engaged in the exploration, production, and refining of oil and gas. Founded in 1993, it has grown to become one of the largest publicly traded oil companies in the world. The company operates in various regions, including Siberia and the Arctic, and plays a significant role in the global energy market. In addition to oil production, Rosneft is involved in petrochemical production and has a network of refineries. The company is state-owned, with the Russian government holding a controlling stake. Its operations are crucial for Russia's economy and energy security.