Why Oil Prices Spiked to $89 Then Pulled Back: The US-Iran Conflict, Houthi Blockade, and Ceasefire Whiplash

The whipsaw was produced by a rapid-fire sequence of four interacting forces: a collapsed US-Iran ceasefire and renewed US airstrikes, renewed fears over the Strait of Hormuz, a surprise Houthi naval blockade on Saudi Arabia, and intermittent Qatari-led diplomatic efforts.

The Surge: Ceasefire Collapse and US Strikes (July 1–14)

Qatar Talks Bring False Calm

At the start of July, optimism reigned. The US and Iran held indirect technical talks in Doha, facilitated by Qatar, to secure the flow of shipping through the Strait of Hormuz and extend a fragile ceasefire . On July 1, Brent settled at $71.57, its lowest level since March, as markets allayed supply concerns . A June 17 memorandum of understanding had reopened the strait, and Brent had fallen to ~$73 by late June .

Trump Declares the Ceasefire 'Over'

That calm shattered on July 8. After Iranian attacks on commercial vessels in the Strait of Hormuz, President Trump declared the ceasefire "over." Overnight, US military forces bombed dozens of targets along Iran's coastline . Brent surged $4.91, or 6.6%, to settle at $79.07, and WTI rose $4.27, or 6.1%, to $74.71 — the biggest single-day percentages since April . The market was pricing in the risk that Iran would re-close the Strait of Hormuz.

Strait of Hormuz Threat

The International Energy Agency (IEA) reported that the earlier effective closure of the Strait of Hormuz had cut as much as 14 million barrels per day of oil flows . Even partial re-closure fears added a massive supply-risk premium. By July 13–14, Brent surged to approximately $86–$88 per barrel, reaching a five-week high, as the US and Iran traded attacks over the weekend .

The Retreat: Inflation Fears and Diplomacy (July 9–21)

Inflation and Demand-Fear Pullback

On July 9, prices slid about 2%. Brent fell $1.72, or 2.2%, to settle at $76.30, and WTI fell $1.44, or 2.0%, to $72.08. The move came as rising inflation fears and economic concerns outweighed supply-disruption premiums. The market bet that the latest US strikes would not lead to a return to full-scale war . Inflation-sensitive assets such as bonds and gold tumbled in the face of the oil surge .

Qatari Mediation Efforts

Qatari-mediated diplomacy between US and Iranian representatives gained intermittent traction throughout July. Every sign of diplomatic progress triggered a retreat in prices, while every breakdown triggered a spike. On July 1, ongoing talks pushed Brent down to ~$71.57 . By July 10, the two sides were continuing technical discussions, with WTI trading near $71 and Brent near $76 . On July 21, oil prices softened again as markets weighed mediation reports against fresh attacks and the new Houthi blockade, with Brent easing 35 cents to $88.87 .

The New Wildcard: Houthi Naval Blockade on Saudi Arabia (July 20–21)

On July 20, Iran-backed Houthi rebels in Yemen declared a naval blockade against Saudi Arabia, effective immediately, in retaliation for a Saudi-led attack on Sanaa International Airport . The Houthis said the blockade was based on "an eye for an eye" in response to what they characterized as a 12-year blockade by Saudi Arabia .

The move threatened shipping through the Bab el-Mandeb strait — a chokepoint through which roughly 12% of global trade and 8–10 million barrels of crude pass daily, including 4 million exported from Saudi Arabia . The blockade opened a second major disruption front beyond the Strait of Hormuz, which was already effectively closed by Iran.

By July 20, Brent was hovering around $88.41, up 13.49% over the prior month, with traders swinging between "escalation" and "diplomacy" narratives .

How the Forces Combined to Produce Volatility

The result was a whipsaw over 21 days:

• Brent fell to ~$71.57 on July 1 on optimism over Qatar talks .
• Surged to ~$79 by July 8 on the ceasefire's collapse and US strikes .
• Retreat to ~$72–$76 on demand fears and resumed diplomacy .
• Then climbed to ~$86–$89 by mid-July as the Houthi blockade added a second chokepoint threat .

Each ceasefire mediation attempt capped prices, and each military escalation or blockade announcement lifted them — a pattern that continued into late July with Brent around $88.87 .

The Outlook: Wide-Ranging Forecasts

Analysts broadly described scenarios ranging from oil collapsing to $40 per barrel if peace fully prevails, to sustained prices above $90 if the conflict widens to both Hormuz and Bab el-Mandab, and above $150 in a worst-case disruption of Middle Eastern supply chains . The market remained caught between a potential supply glut (if Hormuz fully reopens) and a major supply crisis (if both chokepoints are disrupted).

The combination of forces — two threatened chokepoints, a proxy war expanding from Iran to Yemen, and fragile diplomacy — meant that oil markets faced a genuinely two-sided risk distribution in mid-2026, with no clear resolution in sight.