Brent and WTI both slipped about 1% on November 12 to $91.81 and $85.64 per barrel, with the transatlantic spread narrowing to $6.17. The tighter spread is less a sign of structural weakness and more the result of easing premiums on short-haul light-sweet grades such as ESPO, Dubai and Oman, which improved the delivered economics of US Gulf Coast barrels.

Products moved the other way. Fuel oil settled at 4,009 yuan/t (+0.73%), bitumen at 4,286 yuan/t (+1.42%), natural rubber at 19,530 yuan/t (+1.75%) and butadiene rubber at 15,535 yuan/t (+2.30%). With crude down and products up, refinery cracks recovered from a squeezed position back into positive territory, giving independents room to breathe on processing margins.

The CNY held at 6.6697 against the dollar, barely moving, which pulled delivered and duty-paid costs lower in step with crude. For refiners running short-haul light-sweet grades, feedstock economics moved back to the front of the queue. For the transshipment book, with destinations fixed under F7, it is the split of load-port premiums that decides single-voyage P&L more than the absolute flat price.

What matters now is whether the crack holds. If the heavy complex (fuel oil, bitumen) keeps outperforming crude, residual oil will rebalance between coking and bonded bunkering. If crude rallies and eats the product gain, the margin just repaired gets squeezed again.