Russia's state-controlled gas company Gazprom Chief Executive Alexei Miller (L) and Russian President Dmitry Medvedev shake hands in St. Petersburg June 5, 2009. Germany's E.ON group said on Friday it has signed a deal to complete the acquisition of a 25 percent stake in the Siberian Yuzhno Russkoye gas field from Gazprom OAO, wrapping up more than four years of preparation to co-own the strategic asset. The St Petersburg International Economic Forum is attended by top chief executives and officials. Reuters Pictures 6 months ago

Russia's state-controlled gas company Gazprom Chief Executive Alexei Miller (L) and Russian President Dmitry Medvedev shake hands in St. Petersburg June 5, 2009. Germany's E.ON group said on Friday it has signed a deal to complete the acquisition of a 25 percent stake in the Siberian Yuzhno Russkoye gas field from Gazprom OAO, wrapping up more than four years of preparation to co-own the strategic asset. The St Petersburg International Economic Forum is attended by top chief executives and officials.