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Sour crude oil discounts have widened as OPEC members increase exports of higher-sulfur grades and natural gas prices rise. Mars crude averaged $4.92 per barrel below Brent in November, a wider spread than in August and January.
Crude quality spreads affect refinery margins and product output mix, with only indirect effects on feed commodity prices.
Not enough comparable past events yet for a historical read.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.