The Hanish Islands Seizure Changes Everything About Global Oil

The Islands Were Always About Control, Not Just Territory

The seizure of Greater and Lesser Hanish by Yemen’s Houthi rebels is not simply another territorial gain in a grinding civil war. It is a strategic calculation that alters the economics of global energy in real time.

These two islands sit 160 kilometers north of the Bab al-Mandab strait — the narrow pinch of water connecting the Red Sea to the Gulf of Aden and, beyond it, the Indian Ocean. Together with Perim Island, which the Houthis captured earlier, and the port city of Mokha, they now form a chain of control that spans the critical maritime corridor. For the first time, a non-state actor with Iranian backing effectively owns the approaches to the Red Sea’s most commercially vital waters.

What happens next depends on how long Saudi Arabia can keep its oil moving through the only alternative route it has left.

The Pipeline That Was Never Meant to Break

Saudi Arabia’s east-west pipeline has been the kingdom’s secret weapon for decades. It carries crude from the Persian Gulf fields across the desert to the Red Sea export terminal at Yanbu, bypassing the Strait of Hormuz entirely — the chokepoint where Iran could (and periodically does) threaten to close the world’s most congested oil passage.

Since late August, that pipeline has been moving between 2.6 million and 4 million barrels of oil per day out of Yanbu. Rystad Energy estimates that volume is now at risk of “disappearing from the market” after attacks by Iran-allied militants in Iraq knocked it offline. Officials say repairs could take weeks.

This is the moment the Houthi island seizures become exponentially more dangerous. Without the east-west pipeline, Saudi Arabia cannot easily replace the flow that was heading through Yanbu. The eastern route through Hormuz remains exposed to Iranian coercion, and the Red Sea route — which was supposed to be the safe alternative — is now contested by a militia that has demonstrated it can project power across water.

Tim Waterer, chief market analyst at KCM Trade, put it plainly: “The big question for traders right now is the duration of the east-west outage. Any prolonged disruption and the associated supply loss could easily push prices to the next level higher.”

Buffers Are Empty. There Is Nowhere Left to Hide.

The most underreported dimension of this crisis is what has already disappeared from the system. Earlier in 2025, countries held generous stock buffers — spare crude inventories and released strategic reserves — that cushioned the global economy against price spikes. The United States even lifted restrictions on oil stored on ships floating at sea from sanctioned countries, injecting additional supply into markets.

Those buffers are now gone.

Chevron CEO Mike Wirth said it directly on Friday: the stock cushions that existed earlier this year have been “played out.” His assessment carried particular weight because Chevron is one of the few major companies still operating with significant exposure to Middle Eastern supply chains.

“It’s harder to envision a scenario where prices soften and quickly,” Wirth said. “I think the risks remain to the upside over the next few months.”

The market is already pricing in the threat. Brent crude rose 1.17 percent on Monday to $106.92 a barrel. Diesel prices in the United States hit $6 per gallon for the first time last week, squeezed simultaneously by the Iran conflict and Ukrainian attacks on Russian refineries that have further reduced global diesel output.

Who Actually Pays the Price

The Houthis have stated they are not seeking to block all commercial shipping in the Red Sea — only Saudi-linked vessels. This distinction matters less than it appears. Saudi Arabia is the world’s largest oil exporter, and its supplies from the Red Sea side feed economies in Africa and Asia that have few alternatives.

India, China, Japan, and South Korea all import significant volumes of Saudi crude through the Red Sea route. Africa’s eastern and northern states — already struggling with food inflation and currency pressures — depend heavily on these shipments. When the Houthis threaten the sea lanes, they are not just threatening Saudi revenue; they are threatening the energy access of the world’s most vulnerable importers.

The human cost is already mounting. Nearly 94,000 people have fled their homes in Yemen since fighting escalated this month, according to the International Organization for Migration. About 200 schools in south-western Yemen have been converted to shelters. More than 2,000 people have crossed into Djibouti. The Houthi advance now puts rebel forces just 32 kilometers from a US military base on the Horn of Africa — a distance that transforms a regional conflict into a potential flashpoint for American military involvement.

The Second-Order Shock Has Already Started

The immediate impact of the Hanish seizures is geographic and tactical. The second-order impact is economic, and it is already rippling through markets.

When a single non-state actor controls islands on both sides of a critical strait approach, the calculus for every shipping company changes. Insurance premiums spike. Rerouting around Africa adds weeks to delivery times and millions to costs. These costs do not vanish — they transfer to consumers and to central banks already struggling with inflation.

The United States lifted its restriction on floating storage from sanctioned countries precisely because it needed every barrel it could get. Now those barrels are drying up faster than expected, and the alternative routes are either closed, damaged, or politically contested.

Janiv Shah of Rystad Energy noted that Saudi inventories could sustain exports in the coming days but added the crucial qualifier: “that could change quickly.” The speed of change is the risk. Markets hate uncertainty, and right now the uncertainty is moving in the wrong direction for energy consumers worldwide.

What Happens Next

Saudi Arabia is attempting to claw back territory from the Houthis while simultaneously dealing with pipeline attacks in Iraq. Riyadh has issued daily air alerts across the country, and civilian casualties from Houthi ballistic missile and drone attacks totaled 13 on Monday alone. The kingdom is fighting a multi-front war of attrition it did not choose and may not be prepared for.

For global energy markets, the next few weeks will determine whether this episode becomes a contained disruption or a structural shock. If the east-west pipeline is repaired within days rather than weeks, prices may stabilize. If not, the combination of Houthi territorial gains, Iranian-enabled infrastructure attacks, and depleted global buffers could push Brent well beyond $110 — and potentially higher, depending on how long the disruptions last.

The Hanish Islands were always going to be contested ground. What makes this moment different is that the buffers that once absorbed shocks like this are empty. There is no cushion left. When the next wave hits, the world will feel it immediately — and there will be nowhere to hide.