# Crude oil benchmarks and production places

I discovered recently that there are 3 main price indicators for crude oil (used by the IMF): WTI, Dubaï, and UK Brent. If I understand correctly, each place trades some specific kind of oil (with more or less sulfur among other), which is related to the production place.

Is there some stylized facts, or a precise matrix available, which relate the production place and the price index?

My first guess was OPEC production $\Rightarrow$ Dubai and US production $\Rightarrow$ WTI but I'm not sure regarding the UK Brent...