Brent and WTI sit $6.84 apart today. The number looks modest, yet it decides whether a cargo loaded out of the U.S. Gulf clears. Each extra dollar of spread adds incentive to lift WTI, ship it across the Atlantic, and sell it against Brent.

SNSUC's seven-product resale book does not price off a single anchor. ESPO and Sokol track Dubai/Oman, Urals trades at a Brent discount, and Basrah Light, Bonny Light and Lula each carry their own premium-discount structure. When the spread moves, the landed-cost denominator moves with it, and the value gap between North-East Asian and Indian buyers rewrites itself.

An operator does not lock a month of positions off a static spread. The workmanlike move is to break out freight, insurance and port demurrage per route, then lock the cargo whose landed price is lowest. In today's book, WTI's cheapness versus Brent is more pronounced than last week, and Gulf-origin barrels look interesting again on a Far-East landed basis.

One caveat: a widening spread often signals regional inventory dislocations, not a one-way direction. Betting on spread mean-reversion and betting on price direction are two separate risk books.