On the morning of October 30, Brent settled at $111.58/bbl and WTI at $102.88/bbl. The transatlantic spread came in at $8.71, down from $8.83 the prior session, a 12-cent contraction. A narrower spread closes the arbitrage window between Atlantic-basin light grades and US Gulf crude, but it leaves the Middle East–Far East transshipment structure untouched.

SNSUC's transshipment book runs on seven grades — ESPO, Dubai, Oman, Urals, Basrah Light, Bonny Light and Lula. Delivered cost still anchors to Brent plus a regional premium and freight. Take Oman: the DME quote tracks Brent, the cargo loads at the Fujairah anchorage for an STS transfer, and freight is booked on the prevailing VLCC Middle East–Qingdao spot rate. Delivered price = (Brent + Oman premium) × FX × 7.33 × grade factor, with FX taken at USD/CNY 6.6612, another step lower on the week.

What a tighter spread means for the buyer is concrete: North American barrels priced off WTI lose part of their delivered edge, and Middle East grades reclaim their relative value. Every 10-cent move in the spread shifts the delivered cost of a 1-million-barrel cargo by roughly $100,000.