Hormuz Strait Shipping Routes Diverge Amid Heightened Tensions

Introduction

The Strait of Hormuz, a critical artery for global energy, has witnessed notable changes in commercial shipping patterns, driven by escalating geopolitical tensions. This situation has prompted mariners to adopt alternative routes, most notably a shipping lane passing close to the coast of Oman. While this option contributes to the continued flow of crude oil, navigation experts warn of the significant risks associated with it, particularly concerning the increased probability of collision incidents.

Increased Utilization of High-Risk Maritime Route

According to recent reports, a maritime route situated near the coast of Oman is experiencing increased use as a means of entering and exiting the Strait of Hormuz. Estimates suggest that approximately 15 vessels, predominantly oil tankers, traverse this route daily under US aerial cover. Multiple sources have confirmed that the United States is playing a pivotal role in assisting ships in utilizing this passage. This development follows directives issued by former US President Donald Trump, announced earlier, to execute covert missions to provide protection for oil tankers and other commercial vessels transiting the Strait of Hormuz. He stated that this operation had facilitated the passage of some 200 commercial vessels, allowing approximately 100 million barrels of crude oil to enter international markets.

Shipping Volume and Safety Concerns

Experts in ship tracking via satellite imagery, such as Dan Smoot, CEO of Vantor, emphasize that the volume of shipping activity through the Strait of Hormuz, while not extensively covered in the news, is "extremely large" and surpasses expectations.

Rising Navigation Risks

Despite the resumption of traffic, shipping companies remain highly vigilant regarding security risks. John Stawpert, Maritime Director at the International Chamber of Shipping (ICS), explains that the new waterway is very narrow, limiting maneuverability and thus posing a threat to navigation safety. Some analysts suggest that vessels currently transiting the strait are predominantly heading out of the Gulf region, with a few entering for non-Iranian crude oil transactions. Concurrently, a practice known as 'blind flying' is increasing, where vessels disable their GPS signals to avoid detection by Iranian military forces. This practice has, to some extent, suppressed oil prices, keeping them below $100 per barrel.

Impact of Disruption on Global Supplies

Consultancy firm Energy Aspects estimated that the disruption at the strait has reduced global oil supply by approximately 12 million barrels per day, equivalent to the transport capacity of about six supertankers. The firm indicates that Iraq, Kuwait, and the UAE currently transport about 3 million barrels of crude oil daily through the strait. Energy Aspects also noted a reduction of nearly 8 million barrels in Kuwait's Al-Ahmadi port inventory by the end of May, indicating increased loading activities. Amrita Sen, founder of Energy Aspects, stated that the existence of 'blind flying' enables global refineries to boost their output, theoretically "avoiding summer supply tightness."

However, industry insiders stress that the current transit volume remains significantly below pre-conflict levels, when approximately 135 ships passed through the strait daily. An executive from the tanker industry candidly stated that the current transferred cargo volume still shows a considerable gap compared to previous levels.

Escort Mechanisms and New Shipping Models

Aerial Coordination and US Support

Three sources familiar with the situation revealed that the US established a coordination mechanism approximately two weeks ago to provide aerial support for vessels attempting to use the Omani route. Vessels planning passage must apply for permission from the US Central Command, after which they will be provided with specific route coordinates and required to disable GPS and all electronic equipment. Two of these sources indicated that vessels are also advised to navigate at night.

Risks of the Omani Route

A tanker executive described this route as an "on-ramp, two-way street" with difficulty for laden vessels to maneuver, likening it to "driving on a country road at night without lights." This significantly increases the risk of accidents.

Mutual Security Escalation

In a related development, the security situation is witnessing heightened tension. US officials reported that an Apache helicopter participating in an escort mission was hit by an Iranian drone on Monday. This incident prompted the US to launch retaliatory strikes on Wednesday. The US Central Command stated that these actions were a "reciprocal response to recent attacks against US forces and international commercial vessels navigating regional waters."

Innovative Solutions Amidst Challenges

Increased At-Sea Transshipment

Despite ongoing tensions, the increased use of the Omani route has facilitated the export of more crude oil from the Gulf region. Simultaneously, at-sea transshipment activities, where cargo is exchanged directly between vessels, have significantly intensified. According to radar satellite imagery obtained by the European Space Agency on June 2nd, four ship-to-ship transfer activities were identified 80 miles east of Hormuz, off Fujairah, a stark contrast to the absence of similar phenomena in the same area a month prior. Analysis of optical satellite imagery on June 6th showed at least nine vessels engaged in such transfers near Sohar.

Risk-Sharing Model in Shipping

This route, hugging Oman's rocky coastline, narrows to about 800 meters in certain areas, posing a severe challenge for large vessels. Those familiar with the matter state that the US permits two-way traffic but requires vessels to meet in wider waters. Shipping data firm Kpler, using satellite imagery and market information, points out that tankers are frequently shuttling between Gulf loading terminals and offshore transfer points, a pattern that now accounts for 80% of all non-Iranian oil export flows. Industry insiders describe a division of labor: vessels with higher risk tolerance depart from loading ports, make short transits through the strait, and transfer crude oil to more cautiously operated vessels anchored near Sohar, Oman, for onward transportation. During the first nine days of June, crude oil exported through this method reached approximately 2 million barrels per day, nearly double the levels seen in May.

Alternative Routes within Territorial Waters

Shipowners generally believe that the main shipping lane of the Strait of Hormuz has been mined by Iran, forcing vessels to reroute either south via the Omani route or north through internal Iranian waterways. Maritime analytics firm Windward data shows that 51 vessels transited the northern corridor in the first week of June, a significant increase from the average of about 35 vessels per week in May. However, this route requires approval from Iran's Islamic Revolutionary Guard Corps.

Efforts to Curtail Iranian Exports

Meanwhile, the US has been attempting to restrict Iran's own oil exports via vessels since mid-April. Latest estimates from the ICS and other industry organizations suggest that approximately 500 commercial vessels remain stranded in the Gulf waters, down from an initial estimate of 800 at the beginning of the conflict. This reduction is attributed to both the withdrawal of some vessels and gradual correction of statistical data.

Conclusion

Amidst these complex circumstances, the maritime shipping industry continues to adapt to increasing challenges. While alternative routes offer temporary solutions, the persistent risks and escalating tensions necessitate long-term strategic resolutions to ensure the stability of global energy flows and the security of vital maritime passages.