• Iran's security chief says the Strait of Hormuz will remain closed until the U.S. meets seven conditions.
  • Oil flows through the strait have plummeted, with Brent crude spiking above $108 per barrel.
  • Shipping costs have surged, with freight alone now representing over a quarter of delivered crude costs.

Iran Hardens Stance on Hormuz Reopening

Iran will not return to the situation before Islamabad and the Strait of Hormuz will remain closed unless the United States complies with its seven conditions, according to Mohsen Rezaei, secretary of Iran's Supreme National Security Council. "If the United States does not comply, the Strait of Hormuz will remain closed and negotiations will not resume," Rezaei said, adding that Washington must first "earn the trust of the Iranian people."

The demands, transmitted through Qatari mediators, include ending the war—including fighting connected to Lebanon—releasing frozen Iranian funds, ending the U.S. naval blockade of Iranian ports, halting U.S. interference in Iranian domestic affairs and support for opposition groups, and ending attacks on Iranian territory. The headline's "seven" may include closely related elements that were not fully enumerated in the public interview.

Parliamentary speaker Mohammad Bagher Ghalibaf reiterated that neither negotiations nor reopening can return to the pre-"Islamabad" arrangement without U.S. compliance. "There can be no return to prior negotiating conditions or reopening of the strait until Iran's legitimate rights are recognized and Washington fulfills commitments," Ghalibaf said.

Oil Flows Constrained, Costs Soar

The waterway is not functioning normally, but it is not completely devoid of commerce. Reuters reports September flows of about 6.5 million barrels per day, aided by protected corridors and tanker-to-tanker transfers off Oman—far below normal prewar conditions but evidence of partial adaptation.

Before the conflict, the Strait of Hormuz carried roughly one-fifth of global oil consumption. Its disruption creates a global supply-chain and inflation risk, especially for Asian refiners and Gulf exporters dependent on the route.

Oil prices have reacted sharply. Escalation and tanker attacks pushed Brent above $108 per barrel last week, before Saudi measures to sustain shipments eased some immediate pressure. Shipping costs have also skyrocketed. Very-large crude carrier freight for Gulf-to-China cargoes rose above $30 per barrel, versus roughly 2–3% of crude value before the war; freight alone now represents more than one-quarter of the delivered cost at around $105 crude.

Gulf producers are discounting crude to offset higher transport costs and using temporary logistics systems to preserve export volumes. The tanker market is tightening as more vessels are required for short shuttle legs and ship-to-ship transfers, transferring revenue from producers toward tanker owners.

A major market shift is the rapid expansion of ship-to-ship (STS) transfers in the Gulf of Oman. ADNOC pioneered the workaround, using shuttles to bring crude from Gulf terminals to safer waters, where cargo transfers to larger vessels bound for Asian buyers. Reuters estimates about 2.5 million bpd could be loaded through STS transfers in September, roughly 40% of the oil currently moving through Hormuz; this practice was rare before the conflict.

Saudi Aramco has also increasingly relied on this system after disruptions affected the Red Sea outlet. Reuters reports an attack on Saudi Arabia's East-West pipeline on September 10 interrupted flows equivalent to about 4% of global oil supply, making the regional routing problem more acute.

Diplomacy on the Edge

The immediate backdrop is a conflict that began after U.S.-Israeli strikes on Iran in late February, followed by Iranian action that effectively closed or severely constrained Hormuz and a U.S. blockade of Iran's southern ports. A mid-June U.S.-Iran framework intended to support a final settlement subsequently collapsed.

Iran's position combines two messages: diplomacy remains conditionally available, and coercive leverage remains central. Tehran used Qatari mediation and says it awaits a U.S. response. There is no confirmed U.S. acceptance of the new terms. Analysts cited by Al Jazeera see the proposal both as a public pressure tactic and a possible diplomatic opening, but also note that the substantive gap remains large.

The regional dimension is significant. Houthi pressure around the Bab el-Mandeb/Red Sea route limits a key alternative export pathway for Saudi crude, while the U.S. and regional partners are seeking to preserve protected access through Hormuz. This makes the crisis broader than a bilateral U.S.-Iran dispute: it affects Gulf security, Yemen, Israel-Lebanon dynamics, Asian energy security, and the credibility of international freedom-of-navigation efforts.

Iran has also linked the conflict to its nuclear posture. Rezaei said Tehran has not withdrawn from the Nuclear Non-Proliferation Treaty and cited the country's religious prohibition on nuclear weapons, but warned that future escalation, sanctions, or a UN Security Council referral could change calculations.

Economic Ripple Effects

Countries dependent on Gulf LNG, plus households and businesses facing fuel-linked transportation and power costs, remain exposed to prolonged disruption. The immediate impact may emerge through higher energy, freight, insurance, and goods prices.

Gulf states—Saudi Arabia, the UAE, Qatar, Iraq, Kuwait, and Bahrain—face lost or delayed export revenue, higher operating costs, and elevated risks to ports, pipelines, and maritime infrastructure. Asian importers, including China, India, Japan, and South Korea, are particularly exposed because much Gulf production normally travels east through Hormuz.

Shipowners willing to transit conflict zones command unusually high premiums, while insurers and freight customers face greater risk of vessel loss, delay, or rerouting.

Public debate centers on whether Tehran's terms are a credible path to de-escalation or a negotiating position that Washington will view as too expansive. One expert cited by Al Jazeera sees the removal of explicit war-reparations demands as a possible sign of movement; another expects U.S. officials to regard the terms as unacceptable.

What's Next

Hormuz has long been one of the world's most consequential maritime chokepoints, and prior regional crises have repeatedly shown that even threats to disrupt it can move energy prices sharply. The present episode is more consequential than a short-lived threat because it combines actual shipping disruption, attacks around key routes, naval operations, pipeline vulnerabilities, and constrained alternatives.

In the short term, the likely outcomes are continued partial flows rather than a rapid full normalization, persistent energy-price and freight volatility, intensified diplomatic mediation, and a higher risk of a durable logistics restructuring.

The central uncertainty is political, not technical: global markets have demonstrated an ability to keep some oil moving, but normal, lower-cost shipping through Hormuz ultimately depends on a U.S.-Iran de-escalation agreement that neither side has yet accepted.