Crude Oil is under value in Russia Ruble

Is Russia Currency the Crude Oil Currency?

Russia Ruble VS Brent Crude Oil Price:
1. The Russia Currency is tightly connect to Brent Crude Oil Price.
2. Most of the time Brent Crude Oil price above the value of Russia Ruble.
3. It looks like currently the Crude Oil price is somewhat under value in Russia Ruble.