Oil prices settle up more than $4 a barrel on renewed US-Iran fighting

Disruptions at refineries around the world, especially in the Middle East and in Russia, have caused diesel prices to spike. In the U.S., diesel futures HOc1 jumped to a 52-month high on Tuesday after soaring 51% over the past 10 weeks, boosting the diesel HOc1-CLc1 crack spread, which measures refining profit margins, to a record high of around $107 a barrel, according to LSEG data. Russian air attacks killed 12 people and injured many more in Kyiv and the surrounding region early on Tuesday, authorities said, marking the sixth straight day of intense strikes on the Ukrainian capital. Russia was the world's third-biggest crude oil producer behind the U.S. and Saudi Arabia in 2025, according to U.S. energy data, and is a member of the OPEC+ group of producing countries. The oil market was watching for weekly storage reports from the American Petroleum Institute trade group on Tuesday and the U.S. Energy Information Administration on Wednesday. Analysts estimated energy firms pulled 0.8 million barrels of crude from storage during the week ended August 28. If correct, that would be the first decline in five weeks and compares with an increase of 2.4 million barrels in the same week last year and an average decrease of 5.1 million barrels over the past five years (2021 to 2025). NEW YORK, Sept. 1 (Reuters) - Oil prices jumped more than $4 a barrel on Tuesday, settling at a five-week high, as traders feared more supply disruptions from the Middle East due to renewed fighting between the U.S. and Iran. Brent futures LCOc1 rose $4.16, or 4.6%, to settle at $94.65 a barrel. U.S. West Texas Intermediate (WTI) crude CLc1 rose $4.46, or 5.2%, to settle at $90.22. That was the highest close for Brent since July 24 and for WTI since July 23. The U.S. launched new air strikes on Iranian targets, quashing hopes that an exchange of fire last weekend might not presage a wider renewal of hostilities. Oil prices had already risen after that first exchange of direct attacks since July and after reports of two tankers being hit leaving the Strait of Hormuz, the global oil supply waterway that Iran has effectively closed to shipping. Tehran remained defiant, warning that it would prevent oil being exported from the Gulf, despite a threat by U.S. President Donald Trump to hit Iran "hard" in response to the renewed Iranian strikes, and a warning from U.S. Treasury Secretary Scott Bessent that Washington was about to impose new sanctions. "Today at 12 p.m. ET (1600 GMT), U.S. forces began striking Islamic Revolutionary Guard Corps targets in Iran," U.S. Central Command posted on X. "The strikes follow recent attempted attacks by the IRGC against commercial shipping in the Strait of Hormuz and against American service members deployed to the region." The fresh hostilities "raised concerns about prolonged disruptions to energy flows through the Strait of Hormuz," Saxo Bank analyst Ole Hansen said.

Oil prices settle up more than $4 a barrel on renewed US-Iran fighting

Diesel futures surge to a 52-month high

Market awaits weekly U.S. inventory data

Oil prices jump on renewed US-Iran tensions

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