Russia\'s oil giant Rosneft plans to increase its annual oil production output to 160-180 million tons (1,170-1,320 mln bbl) per year by 2020, company\'s Vice President Gani Gilayev said on Tuesday. Gilayev said that Rosneft oil production in 2010 was estimated at 119.6 million tons and the company\'s future plans envisage an annual production of 132 million tons by 2015 and the subsequent increase of up to 160-180 million tons by 2020. He said the company intends to up its oil output by increasing production in Russia\'s Siberian and Far Eastern regions.