Yusufov will move into the offices in Russia's foreign affairs ministry in Moscow that were previously occupied by Viktor Kalyuzhny, who was recently appointed as Russia's ambassador to Latvia.

Under Kalyuzhny, Russia increased its dominance in the Caspian Sea by dropping out of efforts to sign an agreement to delineate the sea and divide its resources among all five littoral states Kazakhstan, Turkmenistan, Iran, Azerbaijan and Russia.

Instead, separate two and three-sided intergovernmental agreements were signed between Kazakhstan, Azerbaijan and Russia, opening the way for joint oil and gas developments in the north and central parts of the sea.