Low-Sulfur Fuel Oil Night Session Closes Up About 6.7%, Fuel Oil Gains 4.5%

A single-session surge of this size in low-sulfur fuel oil, outpacing the move in fuel oil and leaving coking coal flat, points to a product-specific catalyst rather than broad commodity risk appetite. That divergence matters for anyone tracking marine fuel and refinery economics, since the two grades often trade in tandem. Whether the spread between low-sulfur and high-sulfur fuel oil continues to widen is the open question, and it is worth watching how the next regular session prices that gap.