NEW YORK: Oil prices fell on Thursday for the fourth session in a row, as the prospect of higher-for-longer US interest rates raised worries around demand growth in the world’s biggest oil market.

Brent crude oil futures were down 45 cents, or 0.6%, at $81.45 a barrel by 11:50 am ET (1550 GMT). US West Texas Intermediate (WTI) crude futures were 57 cents, or 0.7%, lower at $77 a barrel.

S&P Global data showed accelerating US business activity this month, but manufacturers also reported a surge in prices for a range of inputs, suggesting a pickup in goods inflation in the months ahead.

On Wednesday minutes from the US Federal Reserve’s latest policy meeting showed policymakers remain doubtful if current interest rates are high enough to tame stubborn inflation.

High interest rates increase the cost of borrowing, which can slow down economic activity and dampen demand for oil. Also weighing on the market, US crude stocks rose by 1.8 million barrels last week, according to the Energy Information Administration, compared with an estimated draw of 2.5 million barrels.

However, the EIA also reported US gasoline demand at its highest since November, providing some support for energy markets. “It was a pretty good report for gasoline, everything pretty much hit the positive side of the ledger,” Mizuho analyst Bob Yawger said. “However, one report does not make a trend, so everyone will be watching if it can continue to perform going forward.”

Investors are also looking ahead to an upcoming June 1 meeting of the Organization of Petroleum Exporting Countries and its allies, together called OPEC+, where the group will decide its output policy. Russia said it exceeded its OPEC+ production quota in April for “technical reasons” and will soon present to the OPEC Secretariat its plan to compensate for the error, the Russian Energy Ministry said late on Wednesday.