Gazprom Neft (Russian: Газпром нефть, formerly: Sibneft), is the fourth largest oil producer in Russia and ranked third according to refining throughput. It is a subsidiary of Gazprom, which owns about 96% of its shares. The company is registered and headquartered in St. Petersburg after central offices were relocated from Moscow in 2011.By the end of 2012 Gazprom Neft accounted for 10% of oil and gas production and 14.6% of refining activities in Russia.