AUSTIN, Texas — A tentative agreement between the United States and Iran to end the war has raised hopes of lower gas prices in Central Texas after months of higher fuel costs linked to tensions in the Strait of Hormuz.

President Donald Trump announced at the G-7 Summit in France that an agreement had been reached and said ships were already beginning to leave the strait.

“The deal’s all signed, and the strait is already partially opened. As you know, they’re doing a little hunting for a couple of mines that they’ve already found. But it’s essentially, the ships are starting to go out now. On Friday, it’ll be completely opened,” Trump said.

Trump said the full text of the agreement will be released soon and stressed that it will ensure Iran does not gain access to a nuclear weapon. A formal signing ceremony is scheduled for Friday in Switzerland.

The U.S. military said its blockade of Iranian ports in the Strait of Hormuz will remain in effect until the signing.

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The standoff in the Strait disrupted crude oil supplies worldwide and contributed to rising gasoline prices in the United States. The issue also increased pressure on the Trump administration ahead of expected tough midterm elections.

At a gas station in North Austin, regular unleaded gasoline cost $3.17 a gallon on Monday, down 10 cents from Sunday.

Chris Dyson, who said he fills his tank multiple times a week, said higher prices have been noticeable. He drives from New Braunfels to Austin for work.

“Basically, it’s been more expensive for the past three months. I guess it’s because of what’s going on in Iran, I’m not really sure, but it’s gone up to three dollars, four dollars,” Dyson said.

Last week, AAA Texas reported the statewide average price of gasoline was $3.58 per gallon, down 14 cents from the previous week. The agency released that information before the United States and Iran announced their tentative agreement.

A spokesperson for AAA Texas said some of the decline in oil prices was due to markets determining how to redistribute supply and that demand had also fallen slightly.

Dyson said he is hopeful fuel prices will continue to decline.

“I think things will get better. And what happens if they don’t? As Americans, we have to get stronger, and we have to find another alternative to help ourselves,” he said.