〔Overnight Brief〕Trump Declares 'Total Control' Over Hormuz as Iran Insists Strait Still Closed; Oil Holds Gains

Competing Claims Over the Strait

President Donald Trump claimed the US has "total control" over the Strait of Hormuz, saying "We own it" and warning that Iranian action would be met with force ^[1][2][3]. This was his second such claim in three days ^[4]. Iran's "Persian Gulf Strait Authority" rejected the statement, saying US officials' repeated claims do not change the fact that the strait remains closed unless Iran's conditions are met ^[5][6][7]. US Central Command said that, as of Aug. 12, its blockade had redirected 59 commercial vessels, disabled 3, and boarded 2 ^[8][9][10]. According to Reuters, Trump issued another broadside against Iran's leaders, dealing a further blow to hopes for resolution ^[11]. Iran's Foreign Ministry spokesperson demanded that all parties benefiting from Hormuz shipping be held responsible for repairing environmental damage ^[12]. Iranian officials also threatened energy transmission lines and global infrastructure if Iran is threatened again ^[12].

Market and Supply Response

Oil held the bulk of a five-session gain as traders awaited signs of progress toward reopening the strait ^[13]. The International Energy Agency said the continued closure, high fuel prices, and Middle East tensions have significantly impacted global oil supply and demand ^[4]. Southeast Asia is highly exposed: the Middle East supplies 60% of the region's crude oil imports and almost half of its refined products ^[14]. Satellite images showed the first very large crude carrier in weeks at Saudi Arabia's Juaymah terminal near Ras Tanura, indicating Riyadh is trying to maintain exports, but port activity remains affected by the war, Hormuz, and Houthi threats ^[15]. Saudi Arabia has shifted some shipments to the Red Sea port of Yanbu and the SUMED pipeline, though Yanbu activity has declined, with only three tankers capable of carrying about 3.4 million barrels ^[15]. In the Gulf, the supply response is losing steam while tanker rates hold firm ^[16]. Gulf states are scrambling for alternatives to Hormuz ^[17]. Meanwhile, demand for routes is shifting: a container ship reportedly paid about $4 million to jump the queue at the Panama Canal amid Iran-war disruption and El Niño-linked low water ^[18].

Regional and Global Fallout

Russia is gaining a strategic opening as the Hormuz crisis pushes shipping toward Arctic routes, described as a "Frozen Silk Road" ^[19]. The war is already hitting economies further afield: UK official Burnham warned that the conflict could hit UK growth next year ^[20]. In Yemen, the port of Mocha has fully stopped operations due to Houthi attacks ^[12]. Environmental risks are emerging in the Gulf: Iran is responding to an oil spill near Qeshm Island, where satellite imagery shows an oil slick near a breeding area for endangered hawksbill turtles, and black deposits on the beach ^[21]. The International Maritime Organization has confirmed 65 related incidents since early March ^[21]. Iran says those who use the Strait of Hormuz must compensate for environmental damage to the Gulf ^[22]. Japanese Prime Minister and Iranian President discussed easing tensions and Hormuz transit ^[12].

Negotiation Outlook

Negotiations appear deadlocked, with Washington and Tehran hardening their stances ^[2][3]. Reuters reported no progress on reviving an interim peace deal with the US ^[11]. CITIC Securities argues that a potential Iran-Oman transit agreement cannot fully resolve strait navigation risks, because the agreement is essentially a pressure tool against the US, and structural contradictions over control of the strait make a stable long-term management system unlikely ^[23]. The meaningful signals to watch are whether the US formally launches sanctions exemptions, asset freezes/unfreezing, and blockade adjustments ^[23]. Even under a limited-transit scenario, global inflationary pressure remains but extreme risk is controllable; in the long run, the contest shows America's ability and will to maintain global order is accelerating decline, pushing restructuring of Middle East geopolitics and global supply chains ^[23].