It takes infrastructure to move natural gas. They can find customers - but can they get that NG there? Not right now they can't. And there are material shortages everywhere - it will take a long time and it will be more costly in the long run than their European markets.

Tensions are already rising between the Saudi's and Russians, who are frustrated with Russia's drop in output since the war started. This will only exacerbate the west moving away from fossil fuels - essentially weakening oil power world wide.

On top of that, all the money they're making from oil has been pretty much paying off accumulated foreign debts. People are concerned about the export - but it doesn't matter if you export a lot if you can't import what you need for an extended war effort or for your citizens.

I think Russia has already lost this war from a geopolitical perspective. Even if they take the Ukraine, their position is worse than it was from before.