Russian President Vladimir Putin signed a decree on the application of "special economic measures" in the areas of finance, fuel and energy due to "unfriendly actions of countries and organizations," RIA reported on Friday.

Representatives of unfriendly countries are prohibited until the end of the year to make transactions with shares in "strategic enterprises" of Russia, in the Sakhalin-1 oil and gas development project, in the Kharyaginskoye oil field or in Russian banks, according to the decree.