At 10:00 am EST on April 13, the US Navy officially began a blockade of the Strait of Hormuz (”Trump says Iranian ships to be ‘eliminated’ as US naval blockade begins”), turning the world’s most important oil chokepoint into the epicenter of a fresh pricing shock. In theory, at least.
Why “in theory”? Because if you only looked at what happened to the price of oil futures starting from 10:00 am EST on Monday, it would be very hard to see any glimpse of a worsening oil supply shortage. As a matter of fact, oil futures prices started to head significantly lower right before the US Navy blockade officially began, clashing with any basic logic.
However, not everything moved against basic logic. Spot prices for crude oil across major trading hubs around the world moved higher. Even though I have warned about this plenty of times recently, today I want to dive into the details of what this huge discrepancy means for the WTI May 2026 to June 2026 futures contract rollover that is due in exactly SEVEN DAYS from now.
Today we will look together at whether the spread between spot and future prices reflects a tradable arbitrage, and if that is the case, how it will be exploited, while, on the other side, someone “playing around” with oil futures in the market too much might be about to learn how settlement and deliverability really work.
In 7 days, the NYMEX May 2026 oil future ends trading, and there will be a rollover onto June 2026 futures contracts.
Now, please take a look at the latest spot prices of crude oil according to Platts:
Apr 13 North Sea Platts window
- North Sea Forties crude outright price: $148.87/bbl. This price exceeded its 2008 peak, marking a new all-time high.
- Trafigura bid for May 10–17 WTI Midland cargo at Dated Brent plus $21.95 CIF Rotterdam.
- Mercuria bid for May 8–12 WTI Midland cargo at Dated Brent plus $21.95 CIF Rotterdam.
- Mercuria bid for May 7–9 Ekofisk cargo at Dated Brent plus $22.90 FOB.
The Total bid equated to about Dated Brent plus $19.55 FOB, compared to Friday’s level of Dated Brent plus $18.85 FOB.
Meanwhile, the May 2026 WTI contract (front-month, last trading day ~21 April 2026) is currently trading at ~$96/bbl, while the June 2026 contract sits at ~$90/bbl, a steep ~$6 backwardation in the calendar spread.
Putting it all together, this means prompt physical crude is trading $50+/bbl above the paper May futures.
For reference, please note that Dated Brent (the real-world physical benchmark for North Sea and much global pricing) is currently trading at ~$132.
NYMEX WTI futures at expiration must converge to the physical settlement value at Cushing, Oklahoma (the delivery point). With only 7 days left, this gap between physical and paper oil markets cannot persist. It is a textbook reverse cash-and-carry arbitrage setup (futures deeply undervalued vs. spot).
Let’s now talk about how the arbitrage can be exploited.
Large physical traders and refiners (exactly the names already bidding in the Platts window, such as Trafigura, Mercuria, Total, etc.) can execute this:
- Buy May 2026 WTI futures.
- Stand for physical delivery at Cushing during May, or use EFP (Exchange for Physical) trades to convert the futures position directly into physical WTI or WTI Midland barrels.
- Transport and export the barrels (pipeline to the US Gulf Coast if needed, then load onto tankers for CIF Rotterdam or similar).
- Sell into the physical spot market at the elevated Platts levels (WTI Midland cargoes loading May 7–17 at Dated Brent +$20+ premiums, equating to outright values far above $96 after costs).
Net profit: Roughly the $40+ spread minus logistics, transport, storage, financing, and quality adjustments (typically $8–15/bbl all-in for this route). Still an enormous locked-in margin for anyone with pre-arranged shipping and offtake.
This is precisely what the bidding houses in the Platts window are set up to do, considering they already have the logistics and end-buyers lined up in Europe and especially Asia.
How is what I described expected to impact WTI futures prices heading into the rollover?
- May 2026 futures: Strong upward pressure. Arb buying will dominate any normal rollover selling (longs selling May to buy June). Expect May to rise sharply toward physical parity ($130–148 adjusted for WTI vs. Brent basis and export costs). It CANNOT stay at ~$96.
- Spot physical (Forties, WTI Midland, Dated Brent): Mild downward pressure. Increased deliveries and exports from the arb will add effective supply into the tight prompt window, potentially easing the extreme premiums slightly.
- June 2026 futures: Modest upward drift. Standard rolls (sell May, buy June) provide buying support. If the market reprices ongoing physical tightness into the next month, June could rise too, but less dramatically than May.
- May-June calendar spread: Likely narrows from the current ~$6 backwardation as May catches up faster, though heavy rolls could keep it wide, or even widen it temporarily, if arb buying in May is aggressive.
To summarize: the WTI May futures contract will be pulled up hard toward spot before expiration, while the June contract (new front month post-rollover) will inherit some of the tightness but start from a lower base. The market, as it always ultimately happens, will largely self-correct via arbitrage flows.
Let me now address the question I assume is on everyone’s mind: what if a sudden full US-Iran peace agreement is announced before the WTI rollover?
Even with the Strait of Hormuz fully reopened and sanctions lifted immediately, everyone in the market knows (from historical precedent and logistics realities) that it will take at least 2 months for meaningful extra Iranian barrels to reach global buyers. Production ramp-up from shut-in fields, tanker repositioning, loading schedules at Kharg Island and other terminals, and voyage times all create that built-in delay. The prompt physical market (May 7–17 loadings), therefore, remains genuinely tight in absolute barrel terms.
Nevertheless, this is the exact scenario in which the May 2026 WTI arbitrage opportunity still fails to materialize before the 21 April expiration, because the geopolitical risk premium collapses instantaneously across the entire forward curve as traders price in the certainty of eventual supply relief, even if it is delayed until mid-June or July.
- Dated Brent and Forties outright prices fall sharply from ~$148 toward the $105–115/bbl range. Not because extra oil is already flowing, but because the fear trade evaporates and sellers (producers and floating-cargo holders) rush to offload before the anticipated glut psychology takes hold.
- NYMEX WTI futures sell off hard on the same forward-looking narrative: May 2026 drops from ~$96 toward $88–92, and June 2026 falls in tandem, or even more (to ~$85–88), as the market now discounts abundant supply into Q3.
Why does the arbitrage window slam shut before it can be exploited?
The classic reverse cash-and-carry (buy cheap May futures → take delivery at Cushing → export and sell into rich physical) never gets off the ground for three reasons directly tied to the 2-month normalization lag:
- Physical premiums compress faster than logistics can move. Even though actual extra barrels are still 8–10 weeks away, the psychological premium in the Platts window vanishes within hours. The very traders (Trafigura, Mercuria, Total, etc.) who were bidding +$20–22 no longer have an incentive to chase prompt cargoes at extreme levels. They know the market will be awash soon enough and prefer to keep inventory exposure low. Spot outright values therefore fall toward (or even below) the May futures price before any EFP or take-delivery deals can be executed.
- Futures sell-off outpaces any potential are buying. Speculative and financial longs unwind aggressively on the “peace = eventual oversupply” headline. Any physical players considering standing for May delivery at Cushing now face the risk that, by the time their exported barrels reach Europe or Asia (another 3–4 weeks after loading), the global price level will already have adjusted downward for the coming Iranian barrels. The expected $50+ locked-in margin shrinks to near zero, or turns negative, once transport, quality, and inventory-holding costs are factored in.
- The timing window is too narrow. With only 5–7 days left until NYMEX expiration, there is simply not enough time to line up vessels, secure export capacity from the US Gulf Coast, and execute the physical leg, especially when the spot bid levels have already collapsed. Most houses simply cancel or sharply reduce their Platts bids rather than risk being long physical into a psychologically oversupplied forward market.
In summary, the 2-month normalization lag does not preserve the extreme physical premium in this scenario. It actually accelerates the collapse of the fear-driven bids and the futures sell-off. The market reprices instantly on forward expectations, the Platts window bids evaporate, and the arbitrage opportunity disappears before the big physical houses can act. Prices reconcile lower across spot, May, and June contracts, with the delayed supply relief already baked into trader psychology well ahead of the first extra Strait of Hormuz barrel actually arriving. This is how geopolitical “relief rallies in reverse” can unwind oil backwardation even when the physical barrels themselves are still weeks or months away.
With only seven days left until expiration, the actual path taken will be determined far more by geopolitical headlines than by conventional supply and demand fundamentals. Ultimately, each trader’s or investor’s personal assessment of the scenarios’ probabilities becomes the single most important variable. Those who correctly weigh these scenarios will decide whether to lean into the arbitrage, hedge against its potential failure, or stand aside. In such a compressed timeframe, that subjective probability judgment will separate the winners from the rest during what is shaping up to be an exceptionally volatile rollover.