Bulgaria imports about 60 percent of its energy resources from Russia, making it vulnerable to fluctuations in oil and gas prices. That vulnerability was demonstrated in the late 1990s by the so-called "Gas war" between Sofia and the Russian semi-private giant Gazprom.
Bugarska uvozi 60 odsto svojih energetskih izvora iz Rusije, što je čini podložnom fluktuacijama cena nafte i gasa.Ta podložnost je dokazana krajem 90-ih godina u takozvanom «Gasnom ratu» između Sofije i ruskog polu-privatnog giganta Gazproma.