Iran's Grip on Strait of Hormuz Tested as Oil Flows Recover Amid Ongoing Conflict

As negotiations to end seven months of hostilities between Iran and the United States grind on with the help of mediators, conditions on the water in the Strait of Hormuz are changing in ways that could reshape the balance of power at the bargaining table. New tracking data indicates that vessel traffic through the critical maritime corridor has been climbing steadily, with crude and petroleum flows now estimated at close to 80 percent of pre-war volumes. That recovery marks a striking turnaround from the earliest months of the conflict, when Tehran's effective closure of the strait in retaliation for US-Israeli attacks reduced daily tanker crossings to as few as two.

The revival of shipping activity carries significant strategic weight. Iran has long relied on its capacity to disrupt the Strait of Hormuz—a chokepoint through which roughly one-fifth of the world's oil passes—as its primary source of leverage against Washington's military and economic pressure. Should substantial volumes of oil continue moving through the waterway while Iran itself remains under a US naval blockade of its ships and ports, Tehran's ability to extract concessions in any negotiated settlement would be diminished.

According to commodity analytics firm Kpler, Middle East crude exports reached an estimated 16.328 million barrels per day in September, the highest level recorded since the war erupted in late February. Flows through the Strait of Hormuz specifically were projected to hit about 9.719 million bpd during the month. Saudi Arabia played a leading role in the rebound, with its exports recovering from 2.446 million bpd in August to roughly 5.4 million bpd in September. Kpler noted that regional crude exports have now climbed to just under 80 percent of their pre-war level, though they remain approximately 3.2 million bpd below the 19.513 million bpd shipped in February.

The data may understate the true scale of activity, since it excludes vessels transiting Hormuz with their tracking systems deliberately switched off. Before the conflict, an estimated 120 to 140 ships crossed the waterway each day, around half of them oil tankers carrying some 20 million barrels per day. At the peak of the fighting, that traffic collapsed to as few as two tankers daily.

Despite the encouraging trend, analysts caution against assuming that normal conditions are within reach. Susannah Streeter, chief investment strategist at Wealth Club, told Al Jazeera that while the fact oil is getting through the strait is encouraging, flows are not yet regarded as completely secure or guaranteed, particularly while the broader conflict remains unresolved. The wider war provides a persistent backdrop of uncertainty that could reverse recent gains quickly.

Oil prices offer another signal that Iran has not lost all of its leverage. Brent crude dropped 2.6 percent to $102.59 a barrel on Tuesday as traders responded to recovering Middle East exports, yet the benchmark was still on track for a gain of roughly 13 percent over September. Prices remain elevated globally, including in the United States, where President Donald Trump is approaching a crucial midterm election that could cost his party control of both chambers of Congress. Sustained high energy costs carry political as well as economic consequences for Washington, giving Tehran a degree of indirect influence even as its direct control over shipping weakens.

Tanker insurance costs also continue to run high, reflecting the persistent risks that keep the waterway from being considered fully secure. Elevated premiums raise the expense of moving crude through Hormuz and serve as a financial reminder that geopolitical dangers have not receded. The combination of recovering volumes and stubborn risk premiums suggests Iran's leverage may be eroding rather than vanishing outright.

Tehran rejects any suggestion that its hold over the strait is slipping. Hossein Mohebbi, a spokesperson for the Islamic Revolutionary Guard Corps, said Wednesday that a "military conflict" is still underway in the Strait of Hormuz. He claimed Iranian forces have been striking small ships and preventing them from passing for an extended period, while asserting that America does not respond. The remarks, made to the semi-official Fars news agency, signal that Iran intends to project continued control over the waterway regardless of the traffic data.

Security incidents continue to punctuate the picture. On Wednesday, the United Kingdom Maritime Trade Operations centre reported that unknown projectiles struck three ships in the waterway a day earlier, including a crude oil tanker. Such attacks underscore the fragility of the recovery and the difficulty of guaranteeing safe passage for commercial shipping while hostilities persist.

The broader economic toll on Iran has been severe. The war has significantly damaged an economy already heavily constrained by international sanctions, compounded by the US blockade targeting Iranian ships and ports. Growing economic hardship has prompted Washington to tighten the pressure further, with the US sanctioning ten entities accused of supporting Iran's military. Yet experts believe it would be a mistake to conclude that Tehran will fold easily or that the strait is on a fast track back to normality.

For Iran, the challenge is structural. Its principal bargaining chip—the ability to choke off a vital artery of global energy supply—loses value if oil continues to flow even as its own exports are strangled. For the United States and its allies, the priority is sustaining the recovery in traffic while managing the risks that keep insurance costs elevated and markets jittery. Negotiations mediated by third parties continue, but the shifting reality on the water may prove as decisive as any diplomatic exchange in determining the terms of any eventual settlement.

The coming weeks will reveal whether the increase in shipping represents a durable shift or a temporary opening. Much depends on whether the wider conflict can be contained, whether attacks on vessels cease, and whether insurers regain enough confidence to bring costs down. Until those conditions are met, the Strait of Hormuz will remain a contested space where military posturing, commercial interests, and diplomatic calculations intersect—and where Iran's leverage, while weakened, has not disappeared.