Iran declares the Strait of Hormuz completely open this Friday, and the price of oil plummets nearly 10% in a few hours — the largest drop since the beginning of the conflict.

Written by Douglas Avila

Published on 18/04/2026 at 09:02

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Iranian minister announced free passage for all commercial ships during ceasefire — Brent fell $9 to $90.38 and WTI dropped 9.4% to $82.59 in a single trading session

Iran declared on Friday (17) that the Strait of Hormuz is completely open for the passage of all commercial vessels.

The announcement was made by Foreign Minister Seyed Abbas Araghchi, according to G1.

The reopening is valid during the ceasefire between Israel and Hezbollah in Lebanon, established on Thursday (16).

ARTICLE CONTINUES BELOW

Oil plummets nearly 10%

The market reaction was immediate and brutal.

The barrel of Brent for June closed at $90.38 on the ICE, down 9.06% — a loss of $9.01 in a single day.

The WTI for May fell 9.41%, closing at $82.59 on the Nymex, a drop of $8.58.

For the week, WTI has already lost 14.5% and Brent has dropped 5.06%, according to Times Brasil.

This is the largest daily drop since the conflict between the US, Israel, and Iran began in February.

What Araghchi said

“According to the ceasefire in Lebanon, the passage for all commercial ships through the Strait of Hormuz is declared completely open, on the route coordinated already announced by the Ports and Maritime Organization of the Islamic Republic of Iran,” the minister stated.

The ceasefire has an initial deadline until Tuesday (April 21), which may be extended.

The agreement was signed by President Trump on April 7, after nearly two months of partial blockage of the Strait.

During this period, only a few commercial vessels were transiting daily, according to Portal MIE.

What changes in practice

With ships circulating freely, freight and marine insurance costs are expected to drop in the coming days.

For Brazil, the drop in oil alleviates inflationary pressure on fuels.

However, oil company stocks are suffering. Petrobras lost 6% on the stock market on Friday.

Aviation companies like Azul rose 2.08%, benefiting from cheaper kerosene.

Caution: The president of the Iranian Parliament, Mohammad Bagher Ghalibaf, warned that “with the continuation of the blockade [naval by the US], the Strait of Hormuz will not remain open“. The reopening may be reversed if Washington maintains the blockade on Iranian ports.

Iran declares the Strait of Hormuz completely open this Friday, and the price of oil plummets nearly 10% in a few hours — the largest drop since the beginning of the conflict.

Iranian minister announced free passage for all commercial ships during ceasefire — Brent fell $9 to $90.38 and WTI dropped 9.4% to $82.59 in a single trading session

Oil plummets nearly 10%

What Araghchi said

What changes in practice

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Iran declares the Strait of Hormuz completely open this Friday, and the price of oil plummets nearly 10% in a few hours — the largest drop since the beginning of the conflict.

Iranian minister announced free passage for all commercial ships during ceasefire — Brent fell $9 to $90.38 and WTI dropped 9.4% to $82.59 in a single trading session

Oil plummets nearly 10%

What Araghchi said

What changes in practice

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Cristiano Ronaldo builds a billion-dollar mansion in Portugal with 54,000 square feet, a 3-acre plot facing the Atlantic, private spa, indoor and outdoor pools, and an estimated value of an impressive R$ 385 million.

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