The average spot prices for heavy fuel oil (mazut) M-100, as of February 5, amounted to 8.570 rubles per ton, Cortes IAC reports.

The Cortes estimates show the average price for summer diesel fuel was at 5.108 rubles a ton, down 14 rubles from the last week as winter diesel fuel gained 171 rubles, 19.730 rubles a ton. The index of selling prices of Russian refineries from January 29 through February 5, 2010 for heavy fuel oil was - 3.69%, on diesel fuel - 0.03%.