FILE- In this Wednesday, June 8, 2011 file photo, sun sets behind an oil pump in the desert oil fields of Sakhir, Bahrain. The global benchmark for crude oil rose above $70 a barrel on Monday, Jan. 6, 2020 for the first time in over three months, with jitters rising over the escalating military tensions between Iran and the United States. (AP Photo/Hasan Jamali, File)

FILE- In this Wednesday, June 8, 2011 file photo, sun sets behind an oil pump in the desert oil fields of Sakhir, Bahrain. The global benchmark for crude oil rose above $70 a barrel on Monday, Jan. 6, 2020 for the first time in over three months, with jitters rising over the escalating military tensions between Iran and the United States. (AP Photo/Hasan Jamali, File)

PROVIDENCE, Rhode Island (AP) — The global benchmark for crude oil rose above $70 a barrel on Monday for the first time in over three months, with jitters rising over the escalating military tensions between Iran and the United States.

The Brent contract for oil touched a high of $70.74 a barrel, the highest since mid-September, when it briefly spiked over an attack on Saudi crude processing facilities. Stock markets were down as well amid fears of how Iran would fulfill a vow of “harsh retaliation.”

“The market is concerned about the potential for retaliation, and specifically on energy and oil infrastructure in the region,” said Antoine Halff, a Columbia University researcher and former chief oil analyst for the International Energy Agency. “If Iran chose to incapacitate a major facility in the region, it has the technical capacity to do so.”

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Still, many analysts say they see little cause for concern about damage to the U.S. economy resulting from the jump in oil prices. Some note that higher energy prices can actually benefit the overall economy because the United States is now a net exporter of petroleum products. And the Federal Reserve’s commitment to low interest rates means the Fed is unlikely to raise rates anytime soon to counter any inflationary effects from higher oil prices.

But economists caution that an escalation in the Trump administration’s confrontation with Iran could pose new risks to the economy in the long run.

The U.S. killed Iranian Gen. Qassem Soleimani in Iraq on Friday. Early Sunday, as Iran threatened to retaliate, President Donald Trump tweeted the U.S. was prepared to strike 52 sites in the Islamic Republic if any Americans are harmed.

Fears that Iran could strike back at oil and gas facilities important to the U.S. and its Persian Gulf allies stem from earlier attacks widely attributed to Iran.

The U.S. has blamed Iran for a wave of provocative attacks in the region, including the sabotage of oil tankers and an attack on Saudi Arabia’s oil infrastructure in September that temporarily halved its production. Iran has denied involvement in those attacks.

“Targeting oil infrastructure could raise prices and bring worldwide economic pain and put Iran on the front burner,” which might be exactly the kind of message its leaders are looking to send, said Jim Krane, an energy and geopolitics researcher at Rice University.

Analysts noted that American households devote a smaller proportion of their spending to energy bills than in the past. That is in contrast to previous periods, when a surge in oil prices often preceded recessions.

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The proportion of their spending that U.S. consumers devote to energy has fallen to a historic low of 2.5%, down from more than 6% in the early 1980s, economists at Credit Suisse noted in a research report.

“A global supply shock would be an unwelcome development, but we would not expect it to lead to an imminent recession,” the economists wrote. “There have been several dramatic shifts which ought to make the U.S. economy resilient to rising oil prices. Strong household balance sheets, an accommodative Fed and a large domestic energy sector reduce the risks that an oil shock tips the economy into recessions.

Though the U.S. economy can better withstand a jump in oil prices than it once could, the global economy is still vulnerable.

“Higher oil prices are still very much a negative for the global economy, and that will reverberate back on us,” said Mark Zandi, chief economist at Moody’s Analytics.

Sung Won Sohn, economics and business professor at Loyola Marymount University, said that if the current crisis were to escalate into a much bigger confrontation, it would represent a potentially serious threat:

“If the situation does not escalate beyond the current level, i would say this will be a minor hiccup for the economy. But if it becomes a war and the Strait of Hormuz is closed, then we are looking at a major economic problem.”

Compared to other methods of attack, targeting energy sites also “doesn’t kill a lot of people,” Krane said. “It’s capital-intensive, it’s not people-intensive. It’s a safer option in terms of the virulence of reprisal.”

It would still wreak havoc on the global economy, he said, because of the way that oil markets affect other energy-intensive industries such as airlines, shipping and petro-chemicals.

Global stock markets have been sliding since Friday. European indexes were down over 1% on Monday after Asia closed lower. Wall Street was expected to slide again on the open, with futures down 0.6%.

Brent crude was up $1.07 at $69.67 a barrel, putting it up almost 6% since before the Iranian general’s killing.

At the same time, experts say the effect of a Middle Eastern geopolitical crisis on oil prices isn’t as great as it once was. The U.S. energy industry can ramp up shale oil production in places such as Texas, for example.

“We’re in this new territory where the world oil markets are more dynamic and can tolerate this disruption more than they used to,” said Michael Webber, a mechanical engineering professor at the University of Texas at Austin.

Tensions between the U.S. and Iran have steadily intensified since Trump’s decision to withdraw from a 2015 nuclear deal and restore crippling sanctions.

But after the attack on Saudi Arabia’s crucial Abqaiq oil processing facility in September, Halff said the “market was able to dismiss it pretty quickly, partly because there was a perception that shale oil was pretty abundant.”

After that incident, the price of oil surged over 14% in a day, but lost those gains over the next two weeks.

Halff said the killing of Iran’s top general is different.

“This is not something that can be repaired,” he said. “You can repair a facility. You can’t bring somebody back to life. There’s no turning back.”

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AP economics writer Martin Crutsinger in Washington contributed to this report.