Fuel oil futures surged +2.29% to ¥4,922/t—the day’s strongest gain—while Brent and WTI edged down, signaling import quota constraints overriding macro softness. Authenticity verification for offshore re-sales raised compliance cost; bonded warehouse lock-up volume rose 17% w/w.

Brent up 3.78% to $109.93/bbl, WTI up 3.96% to $101.85/bbl; fuel oil up 3.71% to ¥4,947/t; tank tightness in Ningbo–Shanghai bonded zones drives notable increase in demurrage costs; regional arbitrage breakeven now at fuel oil–asphalt spread ≥ ¥243/t — already met.