Tatneft OAO Pref 

PJSC Tatneft, together with its subsidiaries, engages in exploration, development, and production of crude oil in Russia and internationally. It operates through Exploration and Production; Refining and Marketing; Tires Business; Financial Services; and Corporate and Other Sales segments. The company holds interests in oil and gas fields located in Tatarstan in Russia. It is also involved in the refining, marketing, purchase, and sale of crude oil and refined products. In addition, the company produces and sells tires; sells oilfield equipment, and auxiliary petrochemical related services and materials; and provides financial services. PJSC Tatneft was incorporated in 1994 and is based in Almetyevsk, Russia.