Well, what are we all about politics and about politics! Let's already about something neutral, or something, otherwise it is tired of straight! Why are you arithmetic, let's say, do not like it? Yeah, like it? Then we will do it! So what do we have with a goose? We have a barrel (that is, simply a barrel) of Russian oil "Urals" at a price of $ 75.12 for November 20, that is, $ 34.83 lower than it was in June.