SUMMARY: Dated Brent averaged $83.42/bbl in July, down 2.3% from June, but that number hides a significant shift: Houthi attacks on two Saudi tankers in the Red Sea on 22-23July opened a second front alongside the ongoing Strait of Hormuz disruption, and Dated spiked 12.1% in a single session to a monthly high of $105.59/bbl before settling at $96.22/bbl. The whole North Sea basket repriced together rather than by individual grade, Forties flipped from a three-week discount to the Strip into a $4.06/bbl premium, and CFDs and Cash BFOE swung from contango into sharp backwardation the same week, a textbook prompt squeeze with an actual catalyst behind it. Brent-Dubai EFS tripled intra-month to a $16.25/bbl peak as Atlantic barrels were pulled toward Asia rather than backing into Europe, leaving the North Sea to bid up its own grades; trading activity rose 34% on the back of it.
Market Activity
- Total window activity rose to 527 trades in July from 393 in June (+34%), consistent with a genuine repricing event, not a quiet-market illusion
- Mercuria (31 to 87 trades, #4 to #1 seller) and TOTSA (new entrant, 80 trades) drove the increase in selling; as trading arms rather than producers, their activity reflects a market view rather than physical barrels coming to market, and it was one-sided into the rally, not two-way positioning
- Trafigura's count held roughly flat (68 to 64)but its rank slipped from #1 to #3 seller, as the broader market grew around it, a share story rather than an activity story
- On the buy side, PetroIneos Trading Limited (refiner-linked) nearly tripled its count (27 to 74), consistent with demand coverage into the escalation; Axis Limited more than doubled (24 to 51)
- BP Oil International and Exxon Mobil's Asia-Pacific trading arm (EXTAP) dropped out of the seller top five even as overall activity grew, a regime change worth flagging given both were prominent in June
Price Action

Cross-Market Dynamics
- Forties traded at a discount to the Strip for three weeks (as low as -$1.23/bbl,06-Jul), before flipping to +$4.06/bbl by 31-Jul as the whole basket bid up together
- WTI Midland's diff to the Strip narrowed to +$0.70/bbl (07/09-Jul) while Forties sat at a discount, meaning Midland, not Forties, was setting Dated for most of the first three weeks
- The23-Jul session flipped all five diffs simultaneously to new monthly highs within 48 hours (Midland +$6.78/bbl, Oseberg +$5.67/bbl, Ekofisk +$4.59/bbl, Troll +$5.68/bbl); a synchronized move across grades of differing quality is a wider Atlantic Basin story, not a single-grade fundamental
- Johan Sverdrup (non-basket medium sour) confirmed the read, rallying from $72.28/bbl to $98.32/bbl across July, a broader sour-barrel bid consistent with refiners reaching for any non-Middle East cargoes as the Red Sea/Hormuz risk widened
Cross-Regional Dynamics
- Brent-Dubai EFS averaged $8.14/bbl in July vs$7.21/bbl in June, widening from $3.40/bbl (01-Jul) to a peak $16.25/bbl(24-Jul) before settling at $11.81/bbl (31-Jul); Atlantic-basin barrels became the substitute of choice for buyers locked out of Middle East loadings
- The North Sea diff spike hit on 23-Jul, the same day as the tanker attack, a day before the EFS peak, showing Europe tightened directly on the attack rather than as a knock-on effect of Asia pulling barrels first
- No displaced Middle East or Atlantic cargo backed up into NWE; had it, basket diffs to the Strip would have softened as more competing barrels reached the window, instead they widened in lock step with the EFS
- Net read: Europe competed globally, not regionally, for non-Middle East barrels during the escalation window; a further EFS move past $16/bbl or a reversal below $5/bbl are the directional tells for whether that competition intensifies or eases
Curve Structure

Price Volatility

Something To Watch
- Red Sea/Hormuz dual-chokepoint risk:
- Observation: the Houthi tanker attack opened a second front alongside the already-curtailed Strait of Hormuz
- Why it matters: simultaneous disruption of both primary Middle East export routes would reduce some non-Iranian Gulf supply, while pushing other volumes via the longer Suez route, intensifying the scramble for Atlantic-basin substitute crude that already drove the EFS to $16.25/bbl and the North Sea diff spike
- What to monitor: Red Sea transit volumes and Strait of Hormuz tanker flows; further attacks on Saudi or Gulf tanker traffic
- Observation: the Houthi tanker attack opened a second front alongside the already-curtailed Strait of Hormuz
- CFD front unwind:
- Observation: Cash BFOE M1/M3 peaked at +$11.28/bbl on 23-Jul and had already retraced to+$5.86/bbl by 30-Jul
- Why it matters: a squeeze this size typically mean-reverts once supply finds its way to the front or Middle East flows stabilize
- What to monitor: daily Cash BFOE M1/M3 and CFD W1-W2 closes; a break back below+$2/bbl on M1/M3 would confirm the unwind
- Brent-Dubai EFS at the arb extreme:
- Observation: the EFS printed $16.25/bbl on 24-Jul, more than double its July average
- Why it matters: an EFS this wide makes the West-to-East arbitrage more difficult to work; a narrowing back toward the $7-8/bbl July average would let more regional sweet crude stay in Europe, easing North Sea basket diffs
- What to monitor: daily Brent-Dubai EFS; next month's North Sea loading programmed cargo count as the release-valve signal
Note: All figures, prices and market activity referenced in this report are based on the period covered by this monthly update.








