Shibbir Ahmed, NEW YORK — The escalating war in the Middle East is threatening to deepen disruptions to global oil supplies as fresh attacks target shipping and energy infrastructure in Saudi Arabia and around the strategically vital Strait of Hormuz.

A vessel was struck by a projectile while transiting the Strait of Hormuz on Sunday, forcing its crew to evacuate after a fire broke out, according to the British maritime security agency UKMTO. An Iranian commercial vessel was also hit off Iran’s coast, killing one person and injuring four others, further raising concerns about the safety of commercial shipping in the region.

The latest incidents came after Saudi Arabia shut down its major East-West oil pipeline following a drone attack. The pipeline, which normally carries millions of barrels of crude per day to the Red Sea, has served as a critical alternative route while shipping through the Strait of Hormuz has been heavily disrupted.

Reuters reported Sunday that the pipeline outage could threaten as much as 4% of global oil supply if it is not restored within days. Saudi Arabia has not provided a detailed timeline for repairs, while traders and oil buyers have offered varying estimates for how long the disruption could last.

The supply concerns are being compounded by growing instability around another major maritime chokepoint, the Bab el-Mandeb Strait. Iran-aligned Houthi forces in Yemen have advanced along the Red Sea coast, increasing the risk of further disruption to oil and commercial shipping routes.

Global oil markets have already reacted sharply to the worsening situation. Brent crude has moved above $100 a barrel, while fuel prices have climbed as traders assess the possibility of prolonged disruptions to supplies from the Middle East. Reuters reported that U.S. diesel prices have also reached record levels.

The International Energy Agency has warned that global oil supply could decline by about 5.7 million barrels per day, or 6%, in 2026 because of the continuing conflict and disruptions in the Gulf. Saudi oil production has also fallen sharply from earlier levels.

The developments have raised fears that a prolonged conflict could push energy prices even higher, increasing transportation and production costs and adding to inflationary pressures around the world.

Diplomatic efforts to ease the crisis are continuing, but negotiations involving Iran and Gulf states over safe navigation through the Strait of Hormuz have faced delays. Iran has indicated that reopening the waterway would require concessions from the United States.

With both the Strait of Hormuz and Bab el-Mandeb facing heightened security risks, global energy markets are increasingly vulnerable to further attacks. Any prolonged disruption at both routes could have consequences well beyond the Middle East, affecting fuel prices, shipping costs, inflation and economic growth worldwide.

CAIRO/DUBAI — Iran-backed Houthi forces attacked four cities in southern Saudi Arabia on Tuesday, wounding 73 people and setting fires at energy facilities in what officials described as a major escalation of the expanding Middle East conflict. The attacks targeted the Saudi cities of Abha, Khamis Mushait, Jazan and Najran, according to Saudi authorities. Women and children were among those injured.

The strikes also affected energy-related infrastructure. Fires were reported at several sites, including facilities linked to Saudi oil giant Aramco, while some energy operations were temporarily disrupted. Saudi authorities said the attacks targeted civilian and economic sites and vowed to take measures to protect the kingdom’s security and sovereignty.

The Houthis, meanwhile, claimed responsibility for the attacks and said they had targeted Saudi energy infrastructure using drones and ballistic missiles. Houthi military spokesman Yahya Saree said the operation was carried out in response to recent Saudi attacks in Yemen. The escalation comes as tensions across the Middle East have intensified, threatening to draw additional regional actors into the conflict.

Oil prices surge

The attacks immediately affected global energy markets. Brent crude rose to around $98 a barrel on Tuesday, while U.S. West Texas Intermediate crude climbed above $93 a barrel. Brent had earlier approached the $100 mark, reaching its highest level since July 24.

Analysts are increasingly concerned that attacks on Gulf energy infrastructure and disruptions to major shipping routes could further tighten global oil supplies. Saudi Arabia is the world’s largest oil exporter, making any sustained disruption to its energy infrastructure a major concern for global markets.

Risk of wider regional escalation

The latest attacks add another dangerous dimension to the conflict. The Houthis control large parts of northern Yemen and have previously targeted shipping and regional infrastructure. The strategic importance of the Red Sea has increased as disruptions elsewhere in the region have affected traditional energy-export routes. Any prolonged attacks on Saudi energy facilities or shipping lanes could have consequences well beyond the Middle East.

Saudi officials have vowed a response, raising fears that the latest attacks could trigger another cycle of retaliation between Riyadh-backed forces and the Houthis.The escalation also comes amid heightened tensions involving Iran and the United States, increasing concerns that the conflict could spread across multiple fronts. For global energy markets, the key question now is whether the attacks remain limited or develop into a sustained campaign against Gulf oil infrastructure.