Russia has enough foreign cash reserves stashed to prop up the local economy for 4.3 years. But prepare for stagflation if this oil price depression lasts a year or more.
Good news is gasoline is $2.20/ gallon today here I just went out for a bit

Merry Christmas
Average auto owner will save $1,000 +- a year on fuel costs

This goes right into the consumer economy engine here instead for foreign oil producer's pockets.