If you remember, before the collapse of Oil Prices in 2014, the Russian Government built their entire national budget around the $80+ per barrel Oil price. In 2018, all of the sudden, they think that $80 a barrel cannot be justified. Yeah, sing me another one comrade.
What you are witnessing is masterful Kayfabe. Right now, Western Sentiment (The Face), is squarely against Russia (The Heel). Russia gets to play the reverse psychology game, by running in (even ahead of Trump) to champion a lower oil price. This is classic Sun Tzu behavior. Don’t look like you want something you want.