• President Trump told Fox News (FOX) that the June U.S.-Iran memorandum of understanding is "not worth the paper it's written on," signaling a complete collapse of confidence in the agreement.
  • U.S. forces launched fresh strikes on Iranian Revolutionary Guard targets on September 1, following attempted attacks on commercial vessels near the Strait of Hormuz, while Iran says it would return to the deal if Washington first restores its commitments.
  • Oil prices spiked as the risk of supply disruption through the critical chokepoint grew, with Brent crude rising 1.9% to $92.21 per barrel and West Texas Intermediate climbing 2.47% to $87.88.

Fragile Prospects

The Trump administration's stance on the June memorandum of understanding (MOU) has hardened dramatically. "An agreement with Iran is not worth the paper it's written on," the president said in an interview with Fox News, according to people familiar with the matter. The remark underscores the erosion of trust between the two nations, as the 60-day path toward broader negotiations ended without a durable settlement.

Tehran, for its part, insists it remains open to reviving the deal. President Masoud Pezeshkian said Iran would "immediately reciprocate" if the United States returned to the MOU's terms. But Washington appears to view Iranian implementation as inadequate or unreliable, and has instead opted for a campaign of military deterrence and economic pressure.

The situation escalated sharply on September 1, when U.S. Central Command said it began strikes against Islamic Revolutionary Guard Corps targets, responding to what it described as attempted attacks on commercial vessels in the Strait of Hormuz and on U.S. personnel. Iranian media reported explosions near Qeshm Island, Bandar Abbas, and Chabahar.

Economic Crossfire

The Strait of Hormuz, a vital artery carrying roughly one-fifth of global oil supplies, is the epicenter of the standoff. Brent crude jumped to $92.21 per barrel, and WTI rose to $87.88 as traders priced in a higher likelihood of supply interruptions. Two Saudi-crude supertankers were reportedly struck near the strait, though no casualties or environmental damage were reported.

"The tanker attacks and the U.S. strike campaign have already weakened expectations of a near-term reopening or normalisation of Hormuz traffic," said one energy analyst, who asked not to be named. "Every fresh incident sends a shudder through the insurance and shipping markets."

Insurers, shipowners, and traders are bracing for higher war-risk premiums, diversions, and delays. Shipping costs have started to edge up, and some freight operators are already rerouting vessels around the Bab el-Mandeb, a longer and more expensive path.

Meanwhile, Iran's economy is feeling the squeeze. The rial reportedly crossed 2 million per dollar in August, and annual inflation was measured at 66% in July. U.S. sanctions, now framed as "Operation Economic Outcast," aim to cut off oil revenue and financial channels, prompting Iran's parliament speaker to warn that if Iran cannot export oil from the Persian Gulf, "others should not be able to do so either."

Diplomatic Deadlock

Efforts to rebuild a temporary, conditional agreement have stalled. The June MOU had paired Iranian steps to clear mines and permit passage through Hormuz with U.S. steps to end its naval blockade, lift sanctions, and issue waivers for Iranian oil exports. Instead became a source of dispute than a basis for de-escalation.

Regional mediators Qatar and Oman have been involved in efforts to lower tensions and develop arrangements for navigational access. But after the latest exchange of fire and tanker incidents, those efforts face greater difficulty.

Iran's president met Russian President Vladimir Putin at the Shanghai Cooperation Organisation summit in Bishkek, where Putin expressed support for the original memorandum but acknowledged the ceasefire's fragility. Iran is also looking to preserve economic ties with China and Russia to offset U.S. pressure.

"The diplomatic off-ramp is narrowing," said a former U.S. diplomat familiar with the negotiations. "Without a deal, the administration seems prepared to use military force to protect shipping, but that risks a retaliatory cycle that could spiral out of control."

Historical Echoes

The current dispute grew out of the February 28 U.S. and Israeli strikes on Iran and the subsequent six-month conflict. During his first term, Trump withdrew the United States from the 2015 Joint Comprehensive Plan of Action and adopted a "maximum pressure" sanctions strategy. The present approach resembles that model but is occurring amid direct military exchanges, blockades, and threats to a globally critical shipping route—making the stakes materially higher.

What's Next

Short term, the largest risk is a cycle of retaliation: U.S. strikes, Iranian responses against military targets or shipping, and further sanctions. The tanker attacks and the U.S. strike campaign have already raised the cost of any future agreement.

A limited diplomatic off-ramp remains possible, as Iran's president has publicly said Tehran would re-enter the MOU if U.S. commitments are restored. But there is no sign that Washington currently accepts Iran's framing, and Iran's additional demands—including reported requests related to control of Hormuz and compensation—would be politically difficult for the United States to accept.

Long term, the key variables are whether the parties can agree on verifiable navigation, sanctions, and security arrangements; whether Iran's economic stress changes its negotiating posture; and whether outside powers such as Qatar, Oman, Russia, China, and major oil-importing states can support de-escalation. Without such an arrangement, the conflict is likely to continue imposing a risk premium on global energy and shipping markets even if it does not immediately broaden into all-out war.

This article was updated to include the latest oil price movements and details of the tanker attacks.