Tatneft PJSC engages in the exploration, development, and production of crude oil and gas. The company is headquartered in Almetyevsk, Respublika Tatarstan. Shashina PAO is a Russia-based company primarily engaged in the exploration, development, production, refining, and sale of crude oil and oil products. The firm operates through four main segments: Exploration and production, Refining and marketing, Tire business, and Financial services. The Exploration and production segment focuses on the exploration, development, extraction, and sale of crude oil. The Refining and marketing segment involves the purchase and sale of crude oil and refined products from third parties, as well as the Company's own refining activities and retail operations. The Tire business segment includes the production and sale of tires. The Financial services segment encompasses banking activities. Tatneft's key production assets are located in Russia, with a primary concentration in the Republic of Tatarstan.