Ore everywhere.
If ore is set to something reasonable (1-10000), oil ends up being unreasonable (0% to 3% per patch). I think separate settings are warranted so that this is avoided.
Agreed, 10,000 min and max ends up at 3% oil everywhere, rather terrible :P
I've added a mod setting that allows you to use a crude oil richness multiplier to control the crude oil patch richness. I hope it helps.
Perfect ^.^ Why wasn't factorio designed this way?