Brent crude oil prices climbed to their highest level since May on Tuesday as reported attacks on commercial vessels and Houthi claims of strikes against Saudi Arabian infrastructure increased concerns about energy supplies from the Middle East.
Brent futures reached $111.05 a barrel before trading at $110.80 at 08:10 GMT, an increase of $1.25, or 1.1%.
US West Texas Intermediate (WTI) crude rose to $104.94, its highest level since September, before easing to $104.80, up $1.14, or 1.1%.
The gains reflected renewed geopolitical uncertainty as traders assessed the potential impact of regional security threats on oil shipments and production facilities.
Key Investor Takeaways
- Brent crude reached a five-month high of $111.05 a barrel, while WTI approached $105.
- Yemen’s Houthi movement claimed attacks on Saudi energy and transport infrastructure, although the claims remain unverified.
- Shipping intelligence firm Kpler reported that at least 18 vessels had allegedly been attacked over two weeks.
- ING analysts identified a significant geopolitical risk premium in oil prices, linked to uncertainty over supply flows.
- US crude and refined product inventories were expected to decline, according to a preliminary Reuters survey.
Why Oil Markets Are in Focus
The latest price increase followed claims by Yemen’s Iran-aligned Houthi movement that it had launched several attacks on Saudi Arabian facilities on Monday.
The group identified an Aramco site in Yanbu, the Shaybah oilfield, Riyadh’s King Khalid International Airport and Abha airport among its targets.
Saudi authorities did not immediately confirm the claims, and Reuters said it was unable to independently verify them.
Consequently, the announcement does not establish whether the reported strikes caused damage to oil infrastructure or interrupted production.
Separately, an attack attributed to the Houthis on a government security forces training camp in Yemen’s Shabwa province reportedly killed 58 people and injured more than 200.
The incidents added to concerns about regional security and the potential consequences for energy transportation.
Shipping Attacks Add to Geopolitical Risk Premium
Maritime security has become another factor influencing crude prices.
Kpler said in a note published Monday that at least 18 vessels had reportedly been attacked during the previous two weeks.
The reported incidents have increased uncertainty surrounding commercial shipping routes and the movement of oil through the region.
Even without confirmed supply losses, traders may incorporate additional risk into crude prices when transportation routes or energy facilities face potential disruption.
However, the size and persistence of that premium depend partly on whether physical shipments continue.
ING analysts addressed this distinction in a Tuesday research note:
“Oil prices remain well-supported … This suggests the market is pricing in a significant risk premium, given the situation’s volatility.”
They added:
“However, if flows continue uninhibited despite the geopolitical environment, the risk premium would likely erode slowly. Clearly, there are no signs of this yet.”
Their assessment indicates that continued oil deliveries could eventually reduce the premium associated with geopolitical uncertainty.
For now, reported attacks and the possibility of further disruption remain central to market pricing.
US Inventory Expectations Provide Additional Market Context
Oil traders are also awaiting updated US inventory figures.
A preliminary Reuters survey published Monday indicated that analysts expected American crude oil stockpiles to have declined during the previous week.
Inventories of refined petroleum products were also forecast to decrease.
The expectations provide an additional consideration for supply and demand assessments, although actual inventory changes had not yet been confirmed in the supplied information.
A decline in inventories could influence market sentiment, but its significance would depend on the reported figures and broader supply conditions.
Why This Matters for Investors
The increase in Brent and WTI prices highlights the sensitivity of energy markets to geopolitical developments involving major oil-producing regions and transportation routes.
Higher crude prices may support revenues for oil producers selling into international markets, while increasing feedstock costs for refiners and fuel expenses for transportation companies.
The impact on individual businesses will depend on their production exposure, purchasing arrangements and ability to manage changes in energy costs.
The current uncertainty also means that a rise in oil prices should not be interpreted as evidence of confirmed physical supply shortages.
Instead, part of the price movement reflects the possibility that future attacks could interfere with oil transportation or infrastructure.
What to Watch Next
Investors will be monitoring confirmation of the reported attacks, developments affecting commercial shipping and any evidence of disruption to Saudi oil production or regional exports.
Updated US crude and refined product inventory data will provide another indication of market supply conditions.
The continuation of physical oil shipments will be particularly important in determining whether the geopolitical risk premium persists or gradually declines.
