<em>At the opening of trading on Monday, the bulls attempted to support the appreciation of the dollar in the first half of the day, reflecting the reduction of the key rate of the Central Bank and negative news last week.</em> The dollar in the first hours of trading grew by almost 1.5 rubles from 69 to 70,48, after which the initiative intercepted bears, reducing the exchange rate of the dollar to 65,15 to close on Tuesday. Support the national currency had a significant upward growth oil futures, however, a slight decrease on Wednesday again weakened the ruble to 68,9. Later, the price has stabilized, and followed the oil price increase is slightly stronger. At the beginning of trading on Friday, the rate was 66.2 rubles per dollar. News background for the growth of the "black gold" was associated with a reduction in the number of operating drilling rigs in the U.S. last week by more than 6% and strike labor collectives of oil. Published data has forced many speculators to exit short positions, which resulted in a rebound to the level of 58.9 $/bar, which lasted 3 trading session. The reduction in rigs of shale oil and gas in the U.S. has been going on for 8 weeks, due to a sharp decline in profits in the oil sector. Collapsed barrel forces the producers of shale oil, whose cost is much higher producers of "traditional" oil, to cut production and jobs. Despite the reduction in wells in the United States and strengthened against the background of this barrel, talking about reaching the bottom and the more a trend reversal before the OPEC meeting in June is not necessary. Likely to acalanatha we will hear messages or increased government support for the oil sector in the USA, or about the capacity of the cartel's production with the purpose to finally curb the "shale monster". The main benchmark for the rate of the national currency will remain the ruble cost of a barrel, which will fluctuate in the range 3300-3900 rubles per barrel Brent. On Friday evening there will be a new statistics on the number of operating drilling rigs in the United States, which will affect currency markets next week. Additional pressure will be associated with large payments on external borrowings in February-March, and geopolitical risks. Khanin Maxim, analyst <a href="http://www.kalita-finance.ru/" traget="_blank" rel="nofollow">FG Kalita-Finance</a>