Global Oil Crisis: Risks and Impacts of Iran Closing the Strait of Hormuz

The Strait of Hormuz is a vital chokepoint for global energy, facilitating 17-21% of the world's oil supply (17-21 million barrels daily) and 30% of its liquefied natural gas.


June 15, 2025 Hour: 10:13 pm

The global energy markets are currently facing unprecedented challenges. Following Israel’s recent attacks on Iranian nuclear facilities on June 13, the likelihood of Tehran blocking the Strait of Hormuz has surged from 24% to 47% in just three days, as indicated by predictions from the Polymarket forecasting platform.

This rapid escalation in geopolitical risk threatens to send Brent crude prices soaring well above $100 to $120 per barrel, with significant consequences for economies reliant on energy imports.

The Strategic Importance of the Strait of Hormuz

The Strait of Hormuz is a vital chokepoint for global energy, facilitating 17-21% of the world’s oil supply (17-21 million barrels daily) and 30% of its liquefied natural gas.

Thus, any potential blockage isn’t merely a tactical maneuver; it represents an economic weapon that could redefine international geopolitical dynamics.

As Nikolay Gaponenko, an academic at the Russian Presidential Academy’s Institute of Law and National Security, points out, “the Strait of Hormuz is the most crucial maritime route for exporting oil and gas from the Persian Gulf.”

The Strait of Hormuz is a vital chokepoint for global energy, facilitating 17-21% of the world's oil supply (17-21 million barrels daily) and 30% of its liquefied natural gas.

This statement highlights not just a technical fact but underscores a chokepoint where the energy interests of powers like China, India, Japan, and the European Union converge.

The implications are staggering; nations like China and India, whose economic growth heavily relies on stable energy supplies, might face severe industrial disruptions.

Europe, already reeling from energy disruptions stemming from the Ukrainian conflict, would see its economic recovery jeopardized.

Historical Context and Current Threats

Iran has a history of making such threats. Back in May 2019, Tehran warned that any interference with its oil exports could “destabilize markets and spike prices.”

Now, with Esmaeil Kowsari, a member of Iran’s National Security Commission, stating that the closure of the strait is “under consideration,” this threat appears more tangible than ever before.

The Strait of Hormuz is a critical artery for global energy trade, accounting for approximately 17% to 21% of the world’s oil supply
Strait of Hormuz, political map. Waterway between Persian Gulf and Gulf of Oman, a strategically extremely important choke point, with Iran to the north and UAE and Oman exclave Musandam to the south.

Iraqi Deputy Prime Minister Fuad Hussein provided a stark warning, claiming that “oil prices could soar to $200-300 per barrel should hostilities commence.”

This estimate, relayed to German Foreign Minister Johann Wadephul, reflects strategic calculations that extend beyond mere financial speculation.

Immediate Market Reactions and Future Implications

The market’s response to potential disruption has been swift.

Brent crude prices surged over 8% last Friday, reaching intraday peaks of 13%. For the first time since April, prices have exceeded $70 per barrel—a clear indication that we are entering a new phase of energy volatility.

An analyst from RBC Capital Markets noted that while a prolonged blockade seems unlikely due to U.S. naval presence, even a marginal increase in perceived risk can lead to sharp market fluctuations.

This assessment highlights the sensitivity of a global energy system already strained by various geopolitical crises.

If the Strait of Hormuz were hypothetically closed, an estimated loss of about five million barrels per day from the Persian Gulf and Iraq would occur, according to Iraqi authorities.

Such a loss would not just be a temporary disruption but a systemic shock capable of triggering inflationary crises worldwide.

Moreover, a direct naval confrontation between the United States and Iran could rapidly escalate into a broader regional conflict, with unpredictable repercussions for U.S. allies in the area.

The Kharg terminal, positioned just 25 kilometers off the Iranian coast, handles 90% of Iran’s crude exports. Any attack on this facility would severely impact global supplies.

Defying U.S. sanctions reinstated in 2018, Iran, OPEC’s third-largest producer, has increased its oil production by 13% over the past year to 3.3 million barrels per day, despite prevailing economic challenges.

This maintained production capacity, when combined with control over the Strait of Hormuz, positions Tehran as a pivotal player in the global energy landscape.

While Saudi Arabia and the United Arab Emirates hold the largest spare capacity within OPEC and can ramp up production quickly within 30 days to counterbalance losses from Iran, military tensions in the Gulf could complicate the exportation of Saudi and Emirati crude, adding another layer of complexity to the situation.

Goldman Sachs analyst Daan Struyven has raised short-term price targets, warning that conflict could reduce Iranian oil output by 1.75 million barrels per day, pushing Brent prices above $90.

However, he anticipates a decline to around $60 by 2026, assuming a gradual recovery in supply. These projections mirror the intricate interplay of geopolitical factors, production capacities, and strategic reserves in a highly uncertain market.

The Trigger: Operation Dawn Lion

The recent Operation Dawn Lion, conducted by Israel on the night of June 13, marks a critical juncture in escalating hostilities against Iran.

The attack on Iran’s Natanz enrichment plant reportedly destroyed parts of the underground facility, marking a major escalation in the conflict.

This military action followed Iran’s dismissal of an IAEA report identifying concerns about its nuclear commitments, marking the first time in nearly two decades that Iran was cited for non-compliance.

In response, Iran swiftly announced plans to construct a third uranium enrichment facility, showing its intent to counteract perceived threats.

Intensive military exchanges on June 14 and 15 demonstrated both Iran’s actual capabilities and its political willingness to escalate tensions.

Whether the situation will lead to an agreeable resolution or spiral into open confrontation largely depends on the actions of regional and global powers to contain the crisis.

Global markets On A String

In conclusion, Iran’s consideration to close the Strait of Hormuz presents a risk-laden scenario for global energy markets, threatening to reshape economic landscapes and geopolitical alliances.

As tensions escalate, the world watches closely, knowing that the ramifications of these actions could reverberate far beyond the waters of the Persian Gulf.

The balance of power, energy security, and economic stability hang in the balance as players on this complex chessboard strategize their next moves.

Author: Daniel Ruiz / Manuel F. Diaz

Source: teleSUR