If the contracts were signed in euros, then that's even better for Europe. The more the ruble goes up in value, the lower the oil price goes. E.g. if they sign

If the contracts were signed in euros, then that's even better for Europe. The more the ruble goes up in value, the lower the oil price goes. E.g. if they signed at 1€/gal when €1=10 rubles, then rubles double in value so €1=5 rubles, the price of oil goes down from 10 rubles/gal to 5 rubles/gal.