Bulgarian President Georgi Parvanov (R) welcomes Sergei Shmatko, Russia's Energy Minister at the Energy Summit "Natural Gas for Europe-Security and Partnership" in Sofia, April 24, 2009. European governments and gas consumers must now pledge to back the Nabucco gas pipeline if Europe is to reduce its reliance on Russian gas, an energy security conference in Sofia heard on Friday. Reuters Pictures 7 months ago

Bulgarian President Georgi Parvanov (R) welcomes Sergei Shmatko, Russia's Energy Minister at the Energy Summit "Natural Gas for Europe-Security and Partnership" in Sofia, April 24, 2009. European governments and gas consumers must now pledge to back the Nabucco gas pipeline if Europe is to reduce its reliance on Russian gas, an energy security conference in Sofia heard on Friday.