Russia 's Gazprom one of world 's most powerful energy companies . Comment: But that policy has led to disputes as Gazprom has then sought to raise prices . Russian government owns controlling stake ; Company made $ 61B last year . Kremlin has used Gazprom to exert influence over former Soviet states .
Russia 's Gazprom one of world 's most powerful energy companies . Comment: Russian government owns controlling stake ; Company made $ 61B last year . Kremlin has used Gazprom to exert influence over former Soviet states .