In June 2026, the US and Iran signed a landmark ceasefire agreement that reopened the Strait of Hormuz, lifted a US naval blockade, and introduced a $300 billion conditional reconstruction fund for Iran. The deal, mediated by Pakistan and supported by regional powers, marked a pivotal moment in the conflict and set the stage for reshaping global oil and gas markets. For months, energy markets had been operating under the shadow of escalating tensions in the Middle East, with fears that disruptions to shipping routes and infrastructure could trigger a major supply shock.

As markets adjust to a more stable geopolitical environment, attention is shifting to broader implications for oil prices, trade flows, investment, and regional cooperation. Although uncertainties remain, the agreement could influence global energy markets in the years ahead.

Market Response and Prices

One of the most immediate effects of the ceasefire has been a reduction in the geopolitical risk premium embedded in oil and gas prices. During periods of heightened tension, markets typically price in the risk of supply disruptions, especially in key producing regions. As a result, energy prices often rise even when fundamentals remain unchanged.

With de-escalation, traders have begun reassessing these risks. The fear of a major interruption to Gulf exports has eased, reducing upward pressure on prices and improving market stability. On June 16, Brent crude futures declined by 5% to $78.96 per barrel, marking the first time the benchmark fell below $80 since early March and its lowest level in three months. West Texas Intermediate also fell by 5.8% to $76.05 per barrel.

European gas markets followed a similar trend. Yahoo Finance reported that Dutch TTF futures fell immediately after the ceasefire announcement as traders removed part of the geopolitical risk premium built during the conflict. Attention shifted back to fundamentals, supported by expectations that liquified natural gas (LNG) exports from Gulf producers, particularly Qatar, would continue uninterrupted.

Still, the conflict left a lasting impact. Since hostilities began on February 28, average European gas prices rose by around EUR 10 per megawatt hour (MWh), a 31% increase, while the European Union (EU)’s total gas bill increased by 48%, according to Reuters.

Strait of Hormuz and Energy Trade

The Strait of Hormuz remains one of the world’s most critical energy chokepoints, with around 20% of global crude oil and LNG trade passing through it, alongside fertilizer, helium, and sulfur shipments. Fatih Birol, Executive Director of the International Energy Agency (IEA), described the crisis as the world’s biggest energy security threat in history, referring to it as a “double blockade” preventing vessels from entering or leaving the Strait.

The disruption triggered the largest oil supply shock in history. More than 14 million barrels per day (mmbbl/d) of production were shut in, while cumulative losses exceeded 1 billion barrels. Global oil inventories fell by 3.8 mmbbl/d on average, including a drawdown of 143 million barrels (mmbbl) in May alone. Brent prices surged over 60% above pre-conflict levels, while jet fuel prices nearly tripled, according to the IEA.

Gas markets were equally affected. LNG supplies from Qatar and the UAE fell by over 300 million cubic meters per day (mmcm/d), equal to more than 2 billion cubic meters (bcm) weekly, pushing European gas prices 35% above pre-war levels. The disruption was driven by shipping blockages, the shutdown of Qatar’s Ras Laffan complex—the world’s largest LNG facility—and lower associated gas output due to oil field closures.

The impact was particularly severe given that 93% of Qatar’s LNG exports and 96% of UAE exports normally transit through Hormuz, leaving limited alternatives. Higher energy costs also weakened demand in petrochemicals and aviation.

The ceasefire marks a turning point. The draft agreement states Iran would immediately reopen the Strait of Hormuz to commercial shipping, while the US would begin lifting its naval blockade of Iranian ports. The easing of restrictions is expected to begin immediately after signing and be fully implemented within 30 days.

Early recovery signs are already visible. According to the IEA, oil flows through Hormuz rebounded in early June, supported by increased ship-to-ship transfers in the Gulf of Oman. Shipments rose from 9.6 mmbbl/d in May to about 12 mmbbl/d, signaling gradual normalization.

Expected Energy Supply and Demand Trends

Global energy markets will continue to reflect the pace of Middle Eastern recovery and broader demand trends. The IEA projects global oil supply at 102.4 mmbbl/d in 2026, down 3.9 mmbbl/d from the previous year due to conflict-related disruptions. Supply is expected to rebound strongly in 2027 as Hormuz flows normalize and regional production recovers.

On the demand side, global oil demand is forecast to decline by 1.1 mmbbl/d in 2026, reflecting higher prices, disrupted trade, and weaker refining activity. Demand is expected to recover in 2027 as prices ease and economic conditions improve.

Gas markets are expected to diverge. The IEA projects stronger LNG-driven demand growth in 2026, supported by expanding supply from North America and other producers. This is expected to ease tightness and improve energy security, though geopolitical risks may still drive volatility.

Regional Energy Market Implications

The reopening of Hormuz has major implications for Gulf exporters, whose trade remains heavily dependent on the waterway. While some countries have developed alternative export routes, their capacity to bypass the Strait is limited. Saudi Arabia can redirect some exports through the East–West Pipeline to the Red Sea (5 mmbbl/d capacity), while the UAE can use the Habshan–Fujairah pipeline (1.5 mmbbl/d). Iraq has partial access to the Mediterranean via Türkiye, but most exports still transit Hormuz. Kuwait, Qatar, and Bahrain remain almost entirely dependent on the Strait.

A prolonged disruption would force exporters to rely on these limited alternatives, increasing transportation and operational costs through longer shipping distances, higher freight rates, elevated insurance premiums, and congestion at alternative terminals. Countries with insufficient bypass capacity could also face export constraints, production curtailments, lost revenues, and fiscal pressures. The reopening of Hormuz therefore restores access to global markets, reduces transport risks and costs, supports export normalization, and reinforces the Strait’s continued strategic importance for regional energy security.

Medium- and Long-Term Implications

Beyond immediate recovery, the US-Iran agreement may reshape long-term energy balances. The IEA projects global oil supply is expected to rebound by around 8 mmbbl/d in 2027, reaching a total of 110.3 mmbbl/d as production and exports recover following the reopening of the Strait of Hormuz, while demand grows by only 2 mmbbl/d. This imbalance could create a significant surplus, pressuring prices downward and allowing inventory rebuilding.

However, recovery will not be uniform. The World Bank (WB) estimates that infrastructure damaged in conflict can take several months to multiple years to recover, depending on damage scale, investment, and political stability. During this period, supply remains constrained even after ceasefires, as repairs and operational restarts lag production recovery. This can sustain upward price pressure and trigger temporary demand destruction in fuel-intensive sectors before gradually reversing as infrastructure is restored.

Lower oil prices may benefit importing economies by easing inflation and supporting growth, but prolonged weakness could discourage upstream investment in higher-cost projects, affecting future supply outside the Middle East.

In gas markets, normalization of LNG flows from the Gulf is expected to ease tightness and improve supply security in Europe and Asia, while increasing supplier competition and stabilizing prices over time.

Long-Term Outlook

Looking further ahead, the agreement reinforces the Middle East’s long-term role in global energy supply. OPEC’s World Oil Outlook 2026 projects global oil demand rising to 124 mmbbl/d by 2050, alongside a 23% increase in total energy demand. Meeting this growth will require sustained investment in oil and gas infrastructure across the region, ensuring both energy security and affordability in global markets.