WASHINGTON, D.C. — A coordinated burst of missile and drone strikes on oil tankers in the Strait of Hormuz and on Saudi refinery infrastructure this week has raised fresh concerns about the stability of global energy supplies, according to a peer‑reviewed analysis published in *Energy Policy*.

Between 12 May and 18 May, at least four commercial tankers were hit while transiting the 21‑nautical‑mile choke point, and three Saudi processing units reported minor damage. The study, based on satellite‑derived traffic data and on‑site inspections, estimates that the incidents temporarily reduced export capacity by roughly 1.2 million barrels per day, or 3 % of the region’s usual output.

Economists cite the attacks as a catalyst for a $7‑per‑barrel increase in Brent crude prices, pushing the global average to $92.3 by the end of the week. The same research links the price spike to a projected 0.15 % rise in annual CO₂ emissions, underscoring how geopolitical shocks can offset climate mitigation gains in the short term.

“When supply chains are disrupted, markets react sharply, and that volatility reverberates through carbon pricing mechanisms,” said Dr. Lina Patel, senior fellow at the International Institute for Sustainable Energy. “Our models show that even brief outages can add tens of thousands of metric tons of emissions, a setback for the 1.5 °C pathway.”

Saudi Energy Minister Khalid Al‑Faisal emphasized that “critical safety protocols were activated within minutes, and production has resumed at 95 % capacity.” He added that the kingdom is investing $3.4 billion in drone‑defense systems to protect its offshore assets.

Analysts note that the Gulf’s reliance on a narrow maritime corridor makes it uniquely vulnerable to targeted attacks, a risk that climate‑focused investors are beginning to factor into risk‑adjusted returns. A recent report by Green Capital Partners warned that persistent security threats could raise the cost of green transition projects by up to 12 % in the region.

Key Takeaways

• Four tankers and three refinery units were struck, curbing export capacity by an estimated 1.2 million barrels per day.
• Brent crude rose $7 per barrel, reaching $92.3, and emissions are projected to increase by 0.15 % in the short term.
• Saudi Arabia is allocating $3.4 billion to bolster maritime security, while investors reassess climate‑risk premiums.

While the immediate damage appears limited, the episode highlights the intertwined nature of energy security and climate policy, prompting governments and markets to reconsider how geopolitical instability may undermine emissions‑reduction targets.