Formerly one of Russia’s largest oil companies (Russia’s third in term of oil production volumes). Its full name is TNK-BP Holding Open Joint Stock Company. The name originates from the names of its co-founders – Russian Tyumen Oil Company and British BP.
The company is headquartered in Moscow. The company ranks 235th in Fortune Global 500 (2011). In October 2012, it was announced that the company was going to be purchased by Rosneft, a Russian oil and gas giant. On 21 March 2013, Rosneft announced in its official press-release of closing the acquisition of 100% in TNK-BP.