How stupid can the west be? Seriously? Price controls of sorts...yep don’t sell it if you can’t make the money you want/need. Save it for later or sell it elsewhere.
Unless you have monstrous storage capacity (much greater than the US Strategic Reserve), you can’t “save it for later” for long at all. Shutting down production and pipelines (esp. in cold climates) to terminals is even more problematic.
Moreover, almost half of Russia’s gov’t is funded by oil and gas profits. Most of the rest of the profit goes to keeping the oligarchs happy.