Saudi Arabia's crude oil exports are facing a severe dual-pronged disruption. With escalating Houthi attacks on Red Sea shipping lanes and renewed strikes in the Strait of Hormuz this week, Saudi crude exports in August plummeted to their lowest level in at least nine years, intensifying pressure on global energy supply chains.

The shift to the Red Sea's Yanbu port as an alternative route has collapsed under the weight of new maritime threats. Saudi Aramco had previously rerouted large volumes of crude to the Yanbu terminal to bypass Hormuz risks, with shipments peaking at roughly 4 million barrels per day. However, over the past few weeks, Yemen's Houthi forces declared a naval blockade on Saudi Arabia, rendering this alternative route ineffective.

According to tanker tracking data from Vortexa and Kpler, Saudi Arabia's observed crude exports in August stood at approximately 3 million barrels per day, the lowest since records began in early 2017. This aligns with assessments from crude traders and a person familiar with the matter.

Analysts point out that the sustained contraction in Saudi crude exports is not only hurting Riyadh's fiscal revenues but also adding further strain to global supply chains already stretched thin by six months of regional conflict.

This week, two tankers carrying Saudi crude were attacked in the Strait of Hormuz. One of them, the "Sidr" vessel operated by Bahri, the Saudi national shipping company, was struck on August 31, with the company confirming two crew members lost their lives in the incident.

The situation has delivered a direct shock to global markets. Brent crude prices in London have climbed back above $95 per barrel this week, reaching their highest level since late July, reigniting concerns over resurgent inflationary pressures and the potential for interest rate hikes.

Red Sea "Alternative Corridor" Blocked, Exports Slide Month by Month

Following the outbreak of the conflict in late February and Iran's effective closure of the Strait of Hormuz, Saudi Arabia quickly pivoted its crude exports to the western Red Sea coastline to circumvent the Gulf export channel.

This emergency shift initially proved highly effective. Tracking data shows that exports from the western coast's Yanbu port surged from roughly 770,000 barrels per day in January to about 4.3 million barrels per day by June, effectively cushioning oil price shocks and providing a buffer for the global economy against inflationary pressures.

However, the situation took a sharp turn for the worse when Houthi forces announced a blockade on Saudi shipping. Yanbu port exports fell back to approximately 3.7 million barrels per day in July and dropped further to around 2.25 million barrels per day in August. Meanwhile, Gulf-side exports, after a modest recovery to about 800,000 barrels per day in July, declined again in August. With both corridors under simultaneous pressure, Saudi exports find themselves caught between two fronts.

The ripple effects of the tanker attacks are already influencing buyer behavior. Some Saudi crude customers have reportedly expressed reservations about using Red Sea ports, unwilling to risk sending vessels into the area. This is forcing Riyadh to consider alternative shipping routes around Africa—a solution that would add thousands of extra nautical miles, further drive up transportation costs, and lengthen delivery timelines, creating new disruptions to an already fragile global supply chain.

The attack on Bahri's "Sidr" vessel has drawn particular attention. The company confirmed the tanker was hit by a projectile in the Strait of Hormuz on August 31, resulting in the deaths of two crew members. It was one of two Saudi crude tankers attacked in the strait this week, occurring against the backdrop of U.S. strikes on Iranian military targets and subsequent Iranian retaliation involving projectiles fired at other Gulf states hosting American forces.

Gulf Recovery Signs Prove Short-Lived

While the Red Sea route remains obstructed, the Gulf direction showed brief signs of recovery.

Satellite imagery revealed four tankers simultaneously loading at the large Ras Tanura terminal on the Gulf coast last month. Combined with increased supply from Iraq and Kuwait, as well as successful cargo movement through the Strait of Hormuz by the UAE, markets had briefly harbored hopes of supply-side improvement.

However, the sudden escalation of regional tensions this week brought that recovery momentum to an abrupt halt. The military confrontation between the U.S. and Iran has rekindled concerns over the safety of transit through the Strait of Hormuz, causing Gulf exports to retreat once again.

It is worth noting that the August figures remain preliminary estimates and may be subject to revision as more "dark fleet" movements and related ship-to-ship transfer records are identified.

The energy market's response to these developments is already visible in prices. Brent crude has climbed back above $95 per barrel this week, marking its highest level since late July.

Analysts suggest that the sustained contraction in Saudi exports, combined with further escalation of regional conflict, is reinforcing market expectations of tightening supply and reactivating concerns over resurgent inflation. This has in turn sparked discussions about whether major central banks may be forced to delay rate cuts or even resume hiking.

Over the past few months, Saudi Arabia's export volumes maintained through the Red Sea corridor had been a critical variable in curbing excessive oil price spikes and providing a buffer for the global economy. Now, with this very "alternative solution" itself plunged into crisis, the vulnerability of the market is being laid bare.