Fifteen percent of Russian trade is oil and gas. Russia is no longer the proverbal gas station; that would be Saudi Arabia. This has more to do with Saudi Arabia preparing for the fallout from Tariffs; once the dust settles the prices will go up, and up.
This site shows 53% of Russian exports are oil and gas.
https://oec.world/en/profile/country/rus
How are you calculating the 15% figure? Lots of different ways to define “trade”.