Tatneft is a Russian vertically integrated oil and gas company with headquarters in the city of Almetyevsk, Republic of Tatarstan, Russian Federation. It is the fifth largest oil company in Russia and the eighth largest listed company in Russia by market capitalization. In the 2020 Forbes Global 2000, Tatneft was ranked as the 539th-largest public company in the world.

Almetyevsk is a city in Tatarstan, Russia, located on the left bank of the Zay River 265 kilometers (165 mi) southeast of Kazan. Population: 146,393 (2010 Russian census); 140,437 (2002 Census); 129,008 (1989 Soviet census); 77,000 (1969); 49,000 (1959).