Russia , single-largest natural gas producer , has 20 percent of global gas reserves . Gazprom business accounts for 20 percent of Russia 's gross domestic product . Gazprom disputes with Russia has seen Russian nations wary of the company . His replacement as president , Dmitry Medvedev , is a former chairman of the company . European president and prime minister show strong interest in the company .
Russia , single-largest natural gas producer , has 20 percent of global gas reserves . Gazprom business accounts for 20 percent of Russia 's gross domestic product . Gazprom disputes with Russia has seen Russian nations wary of the company . European president and prime minister show strong interest in the company .