Quality: WTI Is taken into account a "light-weight sweet" crude oil, and that is much easier to refine, when Brent is often a combination of crude oils, like both of those "gentle sweet" and "major sour" grades. You questioned and we sent! AMPReviews now gives the option to up grade https://maps.app.goo.gl/VhAGTRCDGTuVhHJa8