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U.S. benchmark crude gained 5.6% to $87.20 a barrel, while Brent crude, the international standard, was up 5.3% at $95.16 a barrel.

Despite renewed doubts about how soon ships will again transport the vast amounts oil the world gets from the Middle East, share prices were mostly higher in Asia.

In Tokyo, the Nikkei 225 gained 1% to 59,045.45, while South Korea's Kospi was up 1.1% at 6,260.92.

Hong Kong's Hang Seng added 0.8% to 26,373.71 and the Shanghai Composite index advanced 0.6% to 4,075.08.

Australia's S&P/ASX 200 was nearly unchanged at 8,943.90.

In Taiwan, the Taiex jumped 1.4%.

“The problem for markets is not the absence of hope; it is the overpricing of it,� Stephen Innes of SPI Asset Management said in a commentary. “The latest move higher in equities has started to feel less like conviction and more like momentum feeding on itself.�

On Friday, oil prices had dropped back to where they were in the early days of , and U.S. stocks raced to a fresh after Iran said the strait was again for commercial tankers carrying crude from the Persian Gulf to customers worldwide.

A freer flow of oil could relieve pressure on prices for gasoline and that get moved by vehicles. It could even ultimately help people pay less on credit-card interest and mortgage bills.

The S&P 500 leaped 1.2% to an all-time high of 7,126.06, closing out a third straight week of big gains, its longest streak since Halloween.

The Dow Jones Industrial Average surged 1.8% to 49,447.43. The Nasdaq composite climbed 1.5% to 24,468.48.

The U.S. stock market has jumped more than 12% since hitting on hopes the United States and Iran can avoid a worst-case scenario for the global economy despite .

The price for a barrel of benchmark U.S. crude had plunged 9.4% after Iran’s foreign minister, Abbas Araghchi, posted on X that passage for all commercial vessels through the strait “is declared completely open� as a ceasefire appears to be holding in Lebanon.

Brent crude fell 9.1%.

After Araghchi's announcement, Trump said on his social media network that the remained “in full force� pending a deal on the war, though he also suggested that “should go very quickly in that most of the points are already negotiated.�

said Sunday that the U.S. had seized an Iranian-flagged cargo ship that tried to get around a naval blockade. Iran’s joint military command said Tehran would respond soon and called the U.S. seizure an act of piracy.

A fragile, two-week ceasefire between the U.S. and Iran is set to expire Wednesday, while escalating tensions in the Strait of Hormuz raises questions over

Since the war began, market sentiment has swung between optimism and gloom over when the fighting will end and what costs the world economy will endure. A strong start to the earnings reporting season for big U.S. companies has helped support stocks.

In other dealings early Monday, the U.S. dollar rose to 158.90 Japanese yen from 158.79 yen. The euro climbed to $1.1757 from $1.1742.