Iran Oil Supply: Strait of Hormuz & Wider Gulf Threats

by ethan.brook News Editor

The escalating conflict between Israel, the United States and Iran is having a dramatic impact on global oil supplies, with the Strait of Hormuz – a critical waterway for the world’s energy market – becoming a focal point of disruption. While the U.S. Has urged international allies to provide naval escorts for tankers transiting the strait, experts warn that simply focusing on protecting vessels within this narrow chokepoint is insufficient to address the broader threat posed by Iran. The situation, which has already sent global oil prices surging by more than 40 percent, demands a more comprehensive regional strategy to ensure the safe passage of oil and liquefied natural gas.

President Donald Trump has repeatedly called for a multinational effort to secure the Strait of Hormuz, a 38km-wide passage between the Persian Gulf and the Gulf of Oman, shared by Iran, the United Arab Emirates, and Oman. However, Iran’s ability to disrupt oil supplies extends far beyond the strait itself, as demonstrated by recent attacks on tankers and the potential for deploying drones and missiles throughout the Persian Gulf. As of March 18, 2026, data indicates a slight easing of the blockage, with eight commercial vessels detected transiting the strait on Monday, nearly double the number seen in recent days, according to maritime intelligence company Windward. However, this increase appears to be limited to ships with “permission-based transits to friendly countries,” suggesting China and India may be among those granted access.

Beyond the Chokepoint: Iran’s Expanding Reach

The conventional approach to securing the Strait of Hormuz centers on the idea of a “chokepoint,” a narrow passage vulnerable to disruption. But naval analyst Tayfun Ozberk, a former Turkish navy officer, argues that this perspective is “analytically incomplete.” “The effective threat envelope Iran can generate already extends well beyond the narrows,” Ozberk told AFP. This means that tankers are vulnerable not only while navigating the strait itself, but likewise during the “funnelling” phase – the longer routes and predictable lanes leading to and from the passage, where speed constraints and established shipping patterns create opportunities for attack.

Trump himself acknowledged this vulnerability in a recent social media post, stating, “It’s easy for them to send a drone or two, drop a mine, or deliver a close-range missile somewhere along, or in, this Waterway, no matter how badly defeated they are.” This assessment underscores the difficulty of providing foolproof protection through convoy escorts alone. The threat isn’t limited to a single point of vulnerability; it’s a dispersed risk across a much wider geographical area.

The Limits of Naval Convoys

The idea of escorting tankers through the Strait of Hormuz with warships has faced resistance from some NATO allies, as President Trump noted. The logistical challenges of providing continuous protection for a large number of vessels are significant. A purely defensive strategy may not be enough to deter Iran, which has demonstrated a willingness to take risks and disrupt oil supplies as leverage in the ongoing conflict. The recent attacks on at least 15 tankers since February 28, including a Thai vessel hit by a drone strike on March 11, 2026, highlight the persistent danger.

Michelle Wiese Bockmann, an analyst at Windward, suggests that Iran is selectively allowing passage for ships from countries it considers friendly. “Western-affiliated vessels won’t voluntarily come into Iranian waters, but likely Chinese, Indian and others will,” she explained in a post on X. This selective approach further complicates efforts to ensure equitable access to the waterway and maintain stable global oil flows. MarineTraffic reported nine transits on both Monday and Sunday, compared to only five over the previous two days, indicating a limited but growing trend.

Global Economic Implications

The disruption to oil supplies through the Strait of Hormuz has significant implications for the global economy. The waterway carries approximately one-fifth of the world’s oil supply, making it a critical artery for energy markets. The surge in oil prices, exceeding 40 percent since the start of the conflict, is already impacting consumers and businesses worldwide. Prolonged disruption could lead to further price increases, economic slowdowns, and geopolitical instability.

The situation is further complicated by concerns about potential sea mines. Iran has threatened to attack any ships it considers associated with the U.S., raising the risk of further escalation. The United Kingdom Maritime Trade Operations center reported on Tuesday that a tanker off the coast of the United Arab Emirates was hit by an “unknown projectile” and sustained “minor structural damage.”

Looking Ahead: A Regional Approach is Crucial

Addressing the crisis in the Strait of Hormuz and the broader Persian Gulf requires a multifaceted regional effort that goes beyond simply escorting tankers. Strategic planners must consider a wider array of tools and a larger geographical area to effectively protect oil tankers and ensure the stability of global energy supplies. The current situation demands diplomatic engagement, de-escalation efforts, and a coordinated response from international stakeholders. The next key development to watch will be the outcome of ongoing deliberations among global leaders as they formulate a comprehensive strategy to address the escalating crisis.

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