Saudi East-West Pipeline Outage Threatens 4% Hit to Global Oil Supply

A prolonged shutdown of Saudi Arabia’s East-West oil pipeline could remove about 4 percent of global oil supply from the market, according to oil-market sources cited by Reuters, turning a security incident on a strategic export route into an immediate trading risk for crude markets.

The pipeline was halted after drone attacks attributed in the report to Houthi forces. How long repairs will take remains unclear, and Saudi authorities have not provided full details on the scale of the damage or when pumping may resume. That lack of visibility is now the central issue for traders assessing near-term supply, export capacity and risk premia in crude benchmarks.

Reuters reported on Sunday, September 13, citing informed oil-market sources, that if Riyadh does not restore operations on the East-West pipeline in the coming days, Saudi Arabia could face a shortage of crude inventories available for export. The sources estimated that such a disruption could lead to a 4 percent decline in global supply.

Saudi authorities have not provided full information on the extent of damage to the pipeline or the timing for a restart.

The pipeline stoppage began on September 11. Saudi Arabia’s energy ministry said at the time that the decision to suspend operations was taken as a “precautionary measure” after drone strikes launched from Iraqi territory hit Riyadh and Medina provinces.

Repair Window Becomes the Market’s Key Variable

The market impact now depends heavily on the repair schedule. One Reuters source said repairs could take five to six weeks, a timeline that would keep a major export artery offline long enough to tighten available supply and force traders to reassess Saudi loading programs. Another source said the work could be completed more quickly and that crude pumping might resume before repairs are fully finished.

For real-time oil markets, that range of estimates is wide enough to matter. A restart within days would likely reduce the risk of a sustained supply shortfall. A stoppage lasting several weeks would be a different proposition, particularly because the East-West line has become more important during regional disruptions affecting shipping routes.

The East-West pipeline runs for 1,200 kilometers, linking Saudi Arabia’s main oil fields in the east with the Red Sea port of Yanbu. The route allows Riyadh to ship millions of barrels per day without using the Strait of Hormuz, where traffic has been restricted by Iran. In periods of heightened regional tension, the pipeline functions not only as infrastructure but also as a strategic market stabilizer.

Saudi Arabia sharply increased its use of the pipeline after the start of the war against Iran. By June, exports through the route had reached almost 8 million barrels per day, according to estimates from the International Energy Agency. That figure shows why the outage is drawing attention across the energy complex: the line is not a marginal logistics channel, but a major route for moving crude into global markets.

In recent weeks, however, the route’s effective capacity had already been reduced because of Houthi attacks on Saudi tankers in the Red Sea. In August, shipments through Yanbu were around 2.5 million barrels per day, the lowest level since 2013, according to the IEA’s latest monthly report. The new pipeline stoppage therefore arrives after a period of already constrained flows through the Red Sea export corridor.

Red Sea Flows and Hormuz Risk Stay in Focus

The outage adds another layer to a market already tracking geopolitical risk around two major routes: the Red Sea and the Strait of Hormuz. The East-West pipeline is important precisely because it gives Saudi Arabia an option to bypass Hormuz. If that option is impaired, even temporarily, traders may place more weight on maritime risk, insurance costs and the reliability of scheduled cargoes.

The immediate question is whether Saudi Arabia can draw on inventories, reroute flows or restore partial operations quickly enough to prevent a measurable export shortfall. The Reuters sources warned that failure to restart the line in the coming days could leave Riyadh short of oil stocks for export. That does not automatically mean all affected barrels disappear from supply, but it raises the risk of delayed cargoes and tighter prompt availability.

The previous attack on the East-West pipeline in April offers one reference point, though not necessarily a template. After that incident, Saudi Aramco returned the pipeline to operation quickly. This time, officials have not disclosed enough information to let markets confidently price the repair timeline, and source estimates remain split between a multiweek outage and a faster partial restart.

For energy traders, the event is likely to keep attention on intraday headlines from Riyadh, tanker-tracking data around Yanbu, and any sign of changing export allocations. Refiners and physical crude buyers will be watching whether scheduled Saudi barrels are delayed, replaced from storage or redirected through other routes.

The broader market signal is clear: a disruption on a single Saudi pipeline can quickly become a global supply concern when that line handles millions of barrels per day and provides a workaround to one of the world’s most sensitive chokepoints. Until Saudi officials clarify the damage and restart timing, the East-West pipeline outage remains a live supply risk for crude markets.