Comment by greycol

There are refeniries dependent on the Persian Gulf region(PGR) but the majority of countries are dependent on the the general commodities market of downstream products. The US famously produces more oil than it uses and is not generally receiving fuel that's downstream of the PGR and yet if you look at the gas prices in the US you'll realise that it's not as simple as being reliant on fossil fuels from the PGR.

That's without taking into account other things like high grade helium or specific niche products.