

<figure class="image-550">
<img src="https://cdn.kahimyang.com/resources-28/strait-of-hormuz.webp" alt="A high-altitude satellite photograph of the Strait of Hormuz, depicting the narrow, deep-blue waterway separating the rugged, light-brown coastline of Iran to the north from the Musandam Peninsula of Oman and the United Arab Emirates to the south." loading="lazy" />
<figcaption>
Satellite view of the Strait of Hormuz, a vital 21-mile-wide maritime chokepoint that connects the Persian Gulf to the Gulf of Oman. This waterway facilitates the transit of approximately 20% of global oil and liquefied natural gas (LNG) supplies. During the 2026 conflict, the Islamic Revolutionary Guard Corps (IRGC) utilized its control of the strait to implement the "Tehran Toll Booth" regime, a selective access system that diverted vetted vessels through a controlled corridor near Larak Island.
</figcaption>
</figure>


<p>
On April 2, 2026, following a month of escalating regional conflict that effectively neutralized the Strait of Hormuz as a neutral international waterway, the Philippine government secured a landmark bilateral commitment from the Islamic Republic of Iran. This agreement, which guarantees the <b>"safe, unhindered, and expeditious passage"</b> of Philippine-flagged vessels, energy sources, and Filipino seafarers, represents more than a mere humanitarian or economic carve-out; it signals the emergence of a tiered maritime system where sovereign access is contingent upon diplomatic coordination rather than the traditional principles of innocent passage.   
</p>

<h2>
The Strategic Context of Operation Epic Fury and the Subsequent Blockade
</h2>
<p>
The crisis that necessitated the Philippine-Iran accord began on <time datetime="2026-02-28">February 28, 2026</time>, when a combined force led by the United States and Israel launched Operation Epic Fury. This coordinated campaign of airstrikes targeted the Iranian core, striking military installations, nuclear facilities at Natanz and Fordow, and, most critically, the supreme leadership, resulting in the death of Ayatollah <a href="https://en.wikipedia.org/wiki/Ali_Khamenei" class="news-link-ext" target="_blank" rel="noreferrer noopener">Ali Khamenei</a>. The immediate Iranian response was not merely a military retaliation via missile and drone salvos against Israeli targets and U.S. bases in the Gulf, but a strategic utilization of its geographic control over the Strait of Hormuz.   
</p>
<p>
By March 2, 2026, the Islamic Revolutionary Guard Corps (IRGC) had established a de facto blockade, utilizing a combination of physical threats, sea mines, and electronic warfare to halt the flow of traffic through the 21-mile-wide chokepoint. The impact on global energy markets was instantaneous. The Strait, which normally facilitates the transit of 20.5 million barrels of oil and approximately 20% of global liquefied natural gas (LNG) daily, saw non-Iranian traffic drop by 95% within three weeks. While the United States military launched a campaign on March 19 to force the waterway open, the inherent risks of Iranian anti-ship missiles and "zombie" drone swarms rendered traditional shipping untenable for commercial carriers, leading to a surge in insurance premiums and the stranding of over 20,000 seafarers.   
</p>

<div class="table-wrapper">
  <table>
    <caption>Table 1: Chronology of the 2026 Persian Gulf Conflict and the Philippine Diplomatic Response</caption>
    <thead>
      <tr>
        <th>Crisis Timeline: February – April 2026</th>
        <th>Key Event</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>February 28, 2026</td>
        <td>Launch of Operation Epic Fury; death of Iranian Supreme Leader.</td>
      </tr>
      <tr>
        <td>March 2, 2026</td>
        <td>IRGC Navy declares Strait of Hormuz closed to “hostile” traffic.</td>
      </tr>
      <tr>
        <td>March 8, 2026</td>
        <td>Brent Crude reaches $126 per barrel; global insurance rates surge.</td>
      </tr>
      <tr>
        <td>March 13, 2026</td>
        <td>Deployment of the “Tehran Toll Booth” selective access regime.</td>
      </tr>
      <tr>
        <td>March 24, 2026</td>
        <td>President <a href="/kauswagan/articles/2758/september-13-1957-ferdinand-romualdez-marcos-jr-was-born-in-batac-ilocos-norte" class="news_link">Ferdinand R. Marcos Jr.</a> declares State of National Energy Emergency in the Philippines.</td>
      </tr>
      <tr>
        <td>March 26, 2026</td>
        <td>Iran formalizes safe passage for China, Russia, India, Iraq, and Pakistan.</td>
      </tr>
      <tr>
        <td>April 1, 2026</td>
        <td>Philippine DFA and DOE meet Iranian Ambassador in Manila.</td>
      </tr>
      <tr>
        <td>April 2, 2026</td>
        <td>Telephone accord reached between Secretary Lazaro and Minister Araghchi.</td>
      </tr>
    </tbody>
  </table>
</div>

<h2>
The Philippine Energy Crisis: A National Existential Threat
</h2>
<p>
For the Philippines, the closure of the Strait of Hormuz was an existential threat to its domestic stability. As a net energy importer, the country sources approximately 98% of its crude oil requirements from the Middle East, with Saudi Arabia, the United Arab Emirates, and Iraq serving as its primary suppliers. The disruption of these supply chains led to a rapid depletion of national reserves. By March 20, 2026, the Department of Energy (DOE) reported that the country's oil supply had dwindled to just 45 days, down from the pre-war baseline of nearly 60 days.   
</p>



<p>
The economic consequences were profound. Retail fuel prices in the Philippines surged, with diesel exceeding ₱130 per liter and gasoline reaching nearly ₱100 per liter in many regions. In some isolated municipalities, such as Bongao in Tawi-Tawi, local governments were forced to declare states of emergency as fuel shortages halted fishing operations and the delivery of basic goods. The national government responded on March 24 with Executive Order (EO) No. 110, which placed the entire archipelago under a State of National Energy Emergency. This executive action authorized the Unified Package for Livelihoods, Industry, Food, and Transport (UPLIFT), a whole-of-government framework designed to mitigate the impact of the crisis.   
</p>
<h3 class="my-h3">
Fiscal and Sectoral Impacts of the Energy Emergency
</h3>
<p>
The emergency declaration triggered the release of ₱20 billion from the Malampaya gas fund to allow the Philippine National Oil Company (PNOC) to engage in emergency fuel procurement. Despite these fiscal measures, the physical lack of supply forced significant operational changes across the economy.   
</p>

<ol class="k-list">
<li>
<b>Transportation and Aviation</b>: Major carriers, including Cebu Pacific and Philippine Airlines, were compelled to suspend multiple domestic and international routes to conserve aviation fuel reserves.   
</li>
<li>
<b>Agriculture and Food Security</b>: The blockade not only affected fuel but also critical fertilizer supplies, which are largely imported from the Persian Gulf. The Department of Agriculture was forced to pivot toward biofertilizers and activated ₱1 billion in quick-response funds to subsidize fuel for fisherfolk.   
</li>
<li>
<b>Industrial Productivity</b>: Over 425 gas stations across the country closed by late March, and shopping malls reduced their operating hours to lower electricity consumption, as power plants struggled with the volatility of imported fuel costs.   
</li>
</ol>
<p>
The internal pressure on the Marcos administration was immense. While the government pursued alternative suppliers in Japan, Malaysia, and Canada, the logistical reality was that the shortest and most cost-effective route for the bulk of its energy needs remained the Strait of Hormuz. This realization prompted a strategic shift toward direct diplomatic engagement with Tehran, notwithstanding Manila's status as a treaty ally of the United States.   
</p>
<h2>
The Architecture of the "Tehran Toll Booth" and Selective Access
</h2>
<p>
As the conflict progressed, Iran transitioned from a total blockade to a more nuanced "selective access" regime. This system, dubbed the "Tehran Toll Booth" by industry observers and maritime journals like Lloyd's List, established a controlled corridor through Iranian territorial waters north of Larak Island. The IRGC began filtering global shipping based on the nationality of the vessel, the origin of the cargo, and the diplomatic posture of the flag state.   
</p>
<p>
By mid-March 2026, the IRGC had formalised the vetting process for non-hostile vessels. To transit the corridor, operators were required to provide comprehensive documentation to intermediaries with direct connections to the IRGC Navy's Hormozgan Provincial Command. The required information included the vessel's IMO number, a full ownership chain to identify any Israeli or U.S. links, detailed cargo manifests, and complete crew lists.   
</p>
<h3 class="my-h3">
The Vetting and Vouchsafing Mechanism
</h3>
<p>
Once a vessel submitted its documentation, it underwent a screening process that prioritized oil and energy commodities. If cleared, the vessel would receive a unique clearance code and routing instructions. Upon approach to the Strait, ships would be hailed via VHF radio and, upon verification of their codes, provided with an IRGC escort through the designated safe zone.   
</p>

<div class="table-wrapper">
  <table>
    <caption>Table 2: Iranian Selective Access Tiering for Maritime Transit</caption>
    <thead>
      <tr>
        <th>Vessel Tiering under the IRGC Regime</th>
        <th>Typical Nationality/Flag</th>
        <th>Access Terms</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>Tier 1: Friendly</td>
        <td>China, Russia, Iraq, Pakistan</td>
        <td>Priority passage; Yuan-settled tolls.</td>
      </tr>
      <tr>
        <td>Tier 2: Non-Hostile</td>
        <td>Philippines, Japan, South Korea, Malaysia</td>
        <td>Safe passage granted upon coordination.</td>
      </tr>
      <tr>
        <td>Tier 3: Neutral</td>
        <td>Bangladesh, Indonesia, Thailand</td>
        <td>Case-by-case clearance; no active restrictions.</td>
      </tr>
      <tr>
        <td>Tier 4: Hostile</td>
        <td>United States, Israel</td>
        <td>Prohibited; target for kinetic strikes.</td>
      </tr>
    </tbody>
  </table>
</div>

<p>
The legal basis for this tolling and vetting system remained highly contested. While the United Nations Convention on the Law of the Sea (UNCLOS) guarantees transit passage through international straits, Iran - which never ratified the convention - argued that the current state of war allowed it to exercise its rights to self-defense. This "sovereign filter" forced dependent nations like the Philippines to choose between adhering to traditional maritime laws or accepting Iran's de facto jurisdiction to ensure national survival.   
</p>
<h2>
The Diplomatic Breakthrough: The April 2 Philippine-Iran Accord
</h2>
<p>
The diplomatic process that led to the safe-passage commitment was initiated by President Ferdinand Marcos Jr., who directed the Department of Foreign Affairs to find a non-military solution to the energy blockade. On April 1, 2026, Foreign Affairs Secretary Ma. Theresa Lazaro and Energy Secretary Sharon Garin met with Iranian Ambassador Yousef Esmaeilzadeh in Manila. During this meeting, the Philippines formally requested to be designated as a "non-hostile" country, emphasizing its neutrality in the ongoing conflict despite its defense ties with Washington.   
</p>
<p>
The breakthrough occurred on April 2, 2026, during a phone call between Secretary Lazaro and Iranian Foreign Minister Seyed Abbas Araghchi. Minister Araghchi provided the necessary assurances, stating that Iran would allow the "safe, unhindered, and expeditious passage through the Strait of Hormuz of Philippine-flagged vessels, energy sources, and all Filipino seafarers".   
</p>
<h3 class="my-h3">
Strategic Dimensions of the Agreement
</h3>
<p>
The wording of the agreement is particularly significant. By including "energy sources" and "all Filipino seafarers," the commitment covers not only the handful of vessels flying the Philippine flag but also any tanker carrying cargo destined for the Philippines or manned by Filipino crew members, regardless of the vessel's registration.   
</p>
<ol class="k-list">
<li>
<b>Energy Security Resilience</b>: The commitment ensures the steady delivery of critical oil and fertilizer supplies, which is vital for both the industrial and agricultural sectors of the Philippines.   
</li>
<li>
<b>Protection of Human Capital</b>: As the world's largest supplier of crew, with over 400,000 seafarers on international ships, the Philippines secured a guarantee that its citizens would not be targeted or detained while performing their duties in the region.   
</li>
<li>
<b>Diplomatic Autonomy</b>: The agreement demonstrates the Philippines' ability to navigate a "third way" in its foreign policy, maintaining a treaty alliance with the United States while engaging in essential pragmatism with Iran to preserve its economic interests.   
</li>
</ol>
<p>
The DFA clarified that this passage would not involve the payment of tolls, a point of contention given reports that other vessels were being charged approximately $1 per barrel. This "no-toll" status mirrors the arrangement granted to Malaysia, signaling that Iran is rewarding nations that take a proactive, non-confrontational diplomatic stance.   
</p>


Philippines Secures Toll‑Free Passage Deal with Iran


Philippines secures a landmark deal with Iran for safe, toll-free passage in the Strait of Hormuz, protecting critical energy supplies and 400,000 seafarers.


Philippines Secures Landmark Safe-Passage Deal with Iran in the Strait of Hormuz