Bangkok, Mar 2 (AP) The US and Israeli attacks on Iran rattled world markets on Monday, with U.S. futures falling more than 1% and oil prices soaring, though gains for defense contractors and oil companies helped limit losses in Asian trading.

The futures for the S&P 500 and Dow Jones Industrial Average sank 1.7%.

The price of a barrel of US benchmark jumped 9% to $73 per barrel. Brent crude jumped nearly 10% to nearly $80 per barrel.

European markets opened sharply lower. Germany's DAX dropped 2.2% to 24,737.47, while in Paris the CAC 40 lost 1.9% to 8,413.91. Britain's FTSE 100 slipped 1% to 10,800.63.

Shares fell in most Asian markets but they rose in Shanghai, where higher oil prices lifted some oil company stocks such as CNOOC, China Petroleum & Chemical and PetroChina to the 10% limit.

The Shanghai Composite index climbed 0.5% to 4,182.59, while in Hong Kong, the Hang Seng lost 2.1% to 26,059.85.

Japan's Nikkei 225 index initially fell more than 2%. It closed 1.4% lower at 58,057.24. Offsetting other losses, shares in defence-related stocks including Mitsubishi Heavy Industries and IHI Corp. advanced.

Australia's S&P/ASX 200 ended flat, at 9,200.90.

In India, which could face disruptions to its access to oil due to the hostilities, the Sensex fell 2.1%.

Taiwan's benchmark lost 0.9% and Singapore's dropped 2.3%. In Bangkok, a major tourism destination for the Middle East, the SET fell 3.1%.

Markets were closed in South Korea for a holiday.

The price of gold, which usually is viewed as a safe haven for investment in times of uncertainty, rose 3.4% to about $5,426 per ounce.

The US dollar also gained, rising to 157.20 Japanese yen from 156.27 yen late Friday. The euro slipped to $1.1708 from $1.1762.

Traders are betting the war will disrupt oil supplies from Iran and elsewhere in the Middle East. Attacks throughout the region, including on two vessels travelling through the Strait of Hormuz, the narrow mouth of the Persian Gulf, have constrained oil exports to the rest of the world.

“Roughly one-fifth of global oil and LNG (liquefied natural gas) flows squeeze through the Strait of Hormuz. This is not an obscure canal. It is the aorta of the global energy system,” Stephen Innes of SPI Asset Management said in a commentary.

A prolonged war would likely result in higher prices for other fuels and gasoline and could cascade throughout the global economy, adding to production costs overall.

Prolonged interruptions to oil flows through the Middle East would have “huge implications for oil and LNG and every market everywhere if it occurs. Energy is an input to ALL production,” RaboResearch Global Economics & Markets said in a report.

Iran exports roughly 1.6 million barrels of oil a day, mostly to China. It may need to look elsewhere for supply if Iran's exports are disrupted, another factor that could increase energy prices.

The size of China's strategic oil reserves is a state secret. But a recent report by John Kemp of Base Research estimated them at 1.1 billion to 1.2 billion barrels –- equivalent to around 100 days or just over three months of imports.

The war's impact on markets was muted somewhat because the attacks were anticipated, with a massive buildup of U.S. forces in the Middle East. So traders had adjusted their positions to take that risk into account.

The conflict has shifted attention, for now, away from issues surrounding artificial intelligence that have dominated markets in recent months.

On Friday, the S&P 500 fell 0.4% to finish just its second losing month in the last 10. The Dow industrials dropped 1.1%, and the Nasdaq composite fell 0.9%.

Treasury yields fell in the bond market as investors sought safer places for their money.

“When markets are fragile, they do not need a knockout blow. They just need another weight on the bar,” Innes said.

Also hurting the broad market was a report Friday showing that inflation at the U.S. wholesale level was at 2.9% last month, much higher than the 1.6% that economists expected.

That could pressure the Federal Reserve to hold off longer on its cuts to interest rates. Lower rates would give the economy and prices for investments a boost, but they risk worsening inflation. (AP) AMS

Oil supply disruption risk drives markets as geopolitical attacks push energy prices up and equities downward. Attacks on Iran caused equity declines and sharp rises in oil and gold as traders priced in disruption to energy flows through the Strait of Hormuz; sustained interruptions to Iranian exports and regional shipping could tighten global supply, elevate fuel and production costs, affect major importers' sourcing strategies, and influence inflation dynamics and central bank rate decisions.