The Brent–WTI spread has compressed from $5+/bbl to $4.75/bbl, marginally tightening the transatlantic arb window. Combined with the rebalancing of Asian delivery premiums for ESPO, Dubai and Oman versus origin premiums on Urals, Bonny Light and Lula, the laycan–discount mix across SNSUC's seven crude re-export grades requires vessel-by-vessel revaluation.

SNSUC's seven flagship re-export grades—ESPO, Dubai, Oman, Urals, Basrah Light, Bonny Light, Lula—carve divergent arb paths on freight and discounts; full coverage enables inter-grade spread management under one LC, with SHA-256 browser fingerprints and digital warrants locking title.