U.S. gas prices jump amid ongoing fighting in Persian Gulf


President Trump and his administration argue every day that the U.S.-Israel campaign against Iran is succeeding, and succeeding every way possible.

Except in the markets and at gas pumps across the United States where motorists look stunned when they realize retail gas prices are up nearly 30% since the beginning of 2026.

That was not what they expected in 2026. It’s certainly not what they were promised.

But here it is.

GasBuddy’s data put the average U.S. gasoline price at $3.643 a gallon on March13. AAA’s average was $3.63 a gallon. The increase in the last two weeks: About 22%.

Related: Goldman Sachs resets oil price target for rest of 2026

Oil prices continued to shoot higher as well on March 13 and may move higher next week.

Brent crude, the global benchmark, settled at $103.14 a barrel on March 13, up 2.7% on the day and 69.5% since Dec. 31.

Light sweet crude, the benchmark U.S. crude, finished at $98.71 per 42-gallon barrel, up 3.1% on the day and 8.6% for the week and 72% since Dec. 31, 2025. It reached as high as $99.32 during the day.

Ships at anchor off of Dubai in the Persian Gulf.AFP/Getty Images · AFP/Getty Images

If the strait remains blocked, oil prices could rise above $125 next week, according to a note from Peter Cardillo, chief market economist at Spartan Capital in New York.

Friday’s close was the highest price since June 2022 when the oil prices soared in reaction to the Russia invasion of Ukraine and the easing of the Covid-19 pandemic.

Sadly, the price shock of 2026 shows few signs of easing yet because Iran has been defending itself against the United States, Israel and even Iran’s neighbors by threatening to halt tanker traffic through the Strait of Hormuz, the 22-mile wide body of water that connects the Persian Gulf to the Indian Ocean.

Some 20% of the world’s crude passes through the strait, most of it bound for Asian customers like China. Safe passage for tankers through the Strait is a key element supporting the global economy.

The strait is effectively shut down now. Iran is escorting tankers with loaded Iranian oil, but tankers carrying oil for, say, Saudi Arabia, Kuwait or Oman, are remaining anchored. Maritime insurers won’t insure those vessels or their cargoes if they try to go through the strait.

The war between Israel and the United States and Iran has been hurting stocks overall, but energy stocks were mostly higher. Exxon Mobil was up 1.7% to $2156.12.

The Standard & Poor’s 500 Index was down 0.7% to 6,629. The Dow Jones Industrial Average dropped 0.3% to 46,534, and the Nasdaq Composite was off 0.9% to 22,105.

Related: Iran’s shocking threat to boost oil to $200

Oil prices have soared despite promises from the United States and the member nations of the International Energy Association to release millions of barrels of oil into the global markets in a bid to trim oil prices. The United States expects to release 172 million barrels of crude over the next four months. IEA members plan to release 400 million barrels.

The U.S. is temporarily easing some sanctions on Russian oil shipments, reflecting global concerns over sharply higher crude prices due to supply shortages stemming from the war. The sanctions have been in place since the Ukraine invasion.

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The Trump administration has said it will send Navy ships to act as escorts, but the escorts may not be in place before the end of March. The administration also plans to send 5,000 troops to the region soon.

President Trump has made no secret of his distaste for Iran’s leaders, calling them “deranged scumbags.” He also demanded to approve the country’s next leader and called for Iran to unconditionally surrender.

News reports show motorists in the United States dismayed at the very least — and angry at worst — at what current gasoline prices have done to pocket books.

“The jump in price is definitely outrageous right now, and it all has to do with Trump going to war,” Phoenix-area resident Ben Saiz told the Arizona Republic newspaper.

“We are the ones actually paying for it.”

The war is costing U.S. consumers in a different way. The yield on the 10-year Treasury note jumped to 4.282% on March 13, up from a recent low of 3.952% on Feb. 27. That’s pushed mortgage rates to 7-month highs, according to Mortgage News Daily.

The rate was about 6.4% on Friday. That would add about $64 a month to the principal and interest payment on a $240,000 mortgage.

Related: What stocks are moving as Iran conflict continues into its third week?

This story was originally published by TheStreet on Mar 14, 2026, where it first appeared in the Economy section. Add TheStreet as a Preferred Source by clicking here.



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