MOSCOW- Abu Dhabi's state-owned Mubadala fund has completed a deal on investment in oil production in Russia's western Siberia, the Russian Direct Investment Fund, a partner in the deal, said in a statement on Wednesday.

Mubadala Petroleum has bought a 44 percent stake in Gazprom Neft-Vostok LLC, the operator of 13 oilfields, from Gazprom Neft has acquired 5 percent in the company.

(Reporting by Vladimir Soldatkin; Editing by Polina Ivanova) ((; +7 495 775 12 42;))