OAO Gazprom Neft (SIBN.RS), the oil arm of Russia's gas monopoly OAO Gazprom (GAZP.RS), plans to boost production to 100 million metric tons a year by 2020, the Interfax news agency reported Friday, citing a company official. Refining volumes will rise to 76 million tons a year, including 40 million tons at facilities in Russia and 36 million tons outside Russia, the head of Gazprom Neft's petrochemical department, Roman Yefimychev, said