SUMMARY
Dubai crude rallied $12.18/b (+15.9%) month-on-month to an $88.85/b average in August, driven by renewed Strait of Hormuz tensions after the 17 June MoU lapsed on 17 August without extension and the US added fresh sanctions on Iran's financial flows. Prices saw a mid-month spike to $97.90/b (24 Aug) and a pullback to $87.10/b (26 Aug), but the market re-rallied into month-end, closing at $94.99/b (31 Aug). The curve confirmed sustained front-end tightening, with Dubai Swaps M1-M12 backwardation quadrupling from $4.21/b to $16.40/b, the steepest print of the year, while the Brent-Dubai EFS compressed hard into month-end to $5.62/b as Dubai-specific tightness outpaced Brent. With backwardation at its widest of the year, the risk skewed toward continued front-end tightness unless the Strait situation de-escalates.
MARKET ACTIVITY
- Selling dominated by producers: Unipec (Sinopec's trading arm) sold 157 of 188 partials (83.5%) in the final October-loading partials tally, with PetroChina second (21, 11.2%)
- A trading house absorbed nearly all of it: Mercuria bought 141 partials (75.0%), with the Mercuria-Unipec pair alone accounting for 128 of 188 of partials deals (68.1%)
- Six Oman convergences were declared through the Dubai partials mechanism this month, tracking below July's seven for the full month but continuing the active convergence trend that began in July
- Mercuria was scheduled to load all 3mn bbl of October cargoes directly from Unipec
PRICE ACTION
- Dubai FOB Partials averaged $88.85/b in August vs July's $76.68/b, +$12.18/b (+15.9%) month-on-month, tracking the 17 August ceasefire MoU expiry and fresh US sanctions on Iran
- Weekly walk: W1 $80.34/b; W2 $88.40/b (+10.0% WoW); W3 $93.03/b (+5.2% WoW); W4 $92.32/b (-0.8% WoW); W5 (31 Aug) $94.99/b (+2.9% WoW), as the mid-month dip fully reversed into month-end
- The largest single-session move was +$8.20/b between 7 and 11 August, spanning the weekend
- The month printed a high of $97.90/b (24 Aug), a low of $77.44/b (6 Aug), and closed at $94.99/b (31 Aug), an intra-month range of $20.46/b vs July's $33.89/b
CROSS-MARKET DYNAMICS
- Murban's average premium to Dubai narrowed slightly to $2.25/b from $2.39/b in July, but swung sharply within the month: from a $9.95/b premium on 17 Aug to $0.01/b on 27 Aug, back to $0.92/b by 28 Aug (last common print)
- Oman's average discount to Dubai widened to $1.01/b from $0.31/b in July, though the month-end print tightened sharply to -$0.68/b (31 Aug) from July's extreme -$3.55/b
CROSS-REGIONAL DYNAMICS
- The EFS averaged $9.05/b in August vs July's $8.14/b, opening at $9.71/b (3 Aug) but closing at $5.62/b (31 Aug), a $4.09/b intra-month decline
- August's $5.62-10.93/b range was under half of July's $3.40-16.25/b band; the month-end compression, opposite to July's month-end widening, pointed to Dubai's tightness outpacing Brent into September
- Chinese demand pull into the region supported the compression: Rongsheng bought around 2mn bbl of Basrah Medium from TotalEnergies and 4mn bbl of Arab Medium via STS Fujairah from Saudi Aramco for September loading, while Sinochem secured 4mn bbl of Middle Eastern crude (Upper Zakum from Petronas, Al-Shaheen from BP) through a rare tender plus a further 2mn bbl of Arab Medium from Saudi Aramco at September Dubai +$5.00/b STS Fujairah, consistent with rising regional demand for Dubai-linked grades narrowing the arb
CURVE STRUCTURE
- Dubai Swaps M1 gained $15.37/b (75.36 to 90.73) over August vs M12's $3.18/b (71.15 to 74.33), the front rallying nearly 5x harder than the back
- M1-M2 widened from +$1.19/b to +$5.76/b and M1-M6 from +$2.51/b to +$13.47/b; the concentration at the front, deepening through month-end rather than easing, signaled sustained rather than fading supply-risk pricing
- Should M1-M12 continue widening past $16.40/b into September, or M6/M12 begin repricing independently, the pattern would shift toward back repricing
PRICE VOLATILITY
- August's CV came in at 6.80%, roughly half of July's 11.88% and June's 13.87%, even as the flat price rose further than in those prior months
- The contained CV alongside a large directional move and a strong month-end close pointed to a steady grind, with the mid-month dip fully absorbed rather than a broad two-way regime
SOMETHING TO WATCH
- Strait of Hormuz blockade risk: the 17 June ceasefire MoU lapsed on 17 August without extension and fresh US sanctions on Iran's financial flows raised the risk of a tighter Tehran blockade; watch Strait transit data and any further Treasury action into September
- Concentration risk in the partials tally: 68% of October-loading trades sat in a single Mercuria-Unipec pair; a shift in either side's positioning would be the story next month
Note: All figures, prices and market activity referenced in this report are based on the period covered by this monthly update.
