Saudi Arabia Closes East-West Oil Pipeline After Drone Attacks Linked to Iraq

Saudi Arabia has officially closed its East-West oil pipeline, known as Petroline, on September 11, 2026, just a day after drone strikes targeted pump stations in the Riyadh and Medina regions, resulting in injuries to personnel. The drone attacks have been traced to Iraq’s Maysan province, which borders Iran, although no group has claimed responsibility for the strikes.

This closure comes at a critical time for global energy markets, especially after Iran's earlier closure of the Strait of Hormuz, which had forced Saudi Arabia to rely more heavily on the Petroline to transport oil to export terminals in the west.

About the Petroline

The Petroline stretches approximately 1,200 kilometers across the Arabian Peninsula, connecting oil fields in Saudi Arabia’s Eastern Province to the Red Sea port of Yanbu. Under normal circumstances, the pipeline transports between 4 to 5 million barrels of oil per day, accounting for about 4% to 5% of the global oil supply, with a maximum capacity of 7 million barrels per day. The Yanbu terminal also connects to refining and petrochemical facilities, amplifying the impact of the pipeline's closure on downstream operations.

Responses from Saudi Arabia and Iraq

In response to the attacks, Saudi Arabia has opted for a restrained approach, agreeing to a formal investigation rather than immediate retaliation. This decision allows Iraq's government to act swiftly, with Iraqi Prime Minister Ali al-Zaidi condemning the strikes and dismissing the operations commander in Maysan province. Additionally, Iraq has closed a border crossing with Iran, indicating a serious approach to the incident. The Gulf Cooperation Council has also condemned the drone strikes, viewing them as an escalation of regional tensions.

The closure of the Petroline adds to the vulnerabilities faced by Saudi Arabia, which is already dealing with the implications of the Hormuz closure and ongoing threats to Red Sea shipping lanes due to Houthi activity. With both primary oil export routes under threat, the situation poses significant risks to Saudi Arabia's oil logistics.

Recent Developments

U.S. President Donald Trump has suggested that Iran is likely behind the recent drone attacks on Saudi Arabia's East-West oil pipeline, which has led to its closure. This incident has heightened tensions in the region, amidst ongoing conflicts involving the U.S. and Iran.

The attack on the pipeline has significant implications for U.S.-Iran relations, potentially complicating ongoing negotiations for a deal. Market confidence appears to be declining, with indications that the likelihood of a U.S.-Iran agreement is decreasing.

Observers are advised to keep an eye on diplomatic responses from both Iran and Saudi Arabia, as well as any military actions that could influence market sentiments. Key figures in U.S.-Iran negotiations, such as Iranian Foreign Minister Javad Zarif and U.S. Chief Negotiator Mike Vance, may provide further insights into the evolving geopolitical situation.