Tatneft' PAO is a subsurface user, operator and supplier of oil and gas resources, and manufacturer of petrochemical products. The Company operates through three segments: Exploration and production; Refining and marketing, and Petrochemical products. The Exploration and production segment consists of exploration, development, extraction and sale of own crude oil. The Refining and marketing segment consists of purchases and sales of crude oil and refined products from third parties, own refining activities and retailing operations. The Petrochemical products segment consists of production and sales of tires, and petrochemical raw materials and refined products, which are used in production of tires. The Company and its subsidiaries are engaged in crude oil exploration, development and production principally in the Republic of Tatarstan. The Company is also engaged in refining and marketing of crude oil and refined products, as well as production and marketing of petrochemicals.