Excellent: WTI Is taken into account a "mild sweet" crude oil, which can be easier to refine, although Brent is actually a blend of crude oils, including both "gentle sweet" and "weighty sour" grades. Screening is by references that POs ask each other for, not by published evaluations or from https://maps.app.goo.gl/VhAGTRCDGTuVhHJa8