Due the well known conflict North-North or the so called "neo" Cold War, the US is taking measures to regain terrain in the intenational field trying to keep the US Dollar pattern. Thus, one of the consecuences is the price´s fall in commoditties, specially thoose strategically important to US in terms of geopolitcs. In that context, oil meassured in Us Dollars affect to russian, venezuelan and iranian economies (mainly the first, in a kind of new Nixon-Mao alliance). Nothing new.