system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why the West is friends with something like Saudi Arabia but always hostile towards Russia

On paper, it's all about democracy, human rights etc, but why being friends with medieval country? Not only Russia, but Iran, China and other countries.
gpt
I don't want to be *that* guy, but honestly it's oil. Saudi Arabia has access to a valuable material and Russia's oil access doesn't meet our standards. Not to mention the whole Cold War so tensions are still icy between the West and Russia.