Oil futures fell Thursday, extending losses from the previous day, as a surprise jump in U.S. crude stocks weighed on the market along with fears of a recession that were heightened by disappointing U.S. retail sales and output data.

Brent crude futures lost 83 cents, or 1%, to $84.15 a barrel, after earlier easing to $83.76. U.S. West Texas Intermediate (WTI) crude futures declined 98 cents, or 1.2%, to $78.50 a barrel. It earlier fell to a low of $78.13.

“Bigger-than-expected fall in U.S. producer prices, a drop in retail sales and the massive decline in manufacturing output last month raised worries once again about the economic cost of rate hikes,” PVM Oil analyst Tamas Varga said.

U.S. December retail sales fell by the most in a year, while manufacturing output recorded its biggest drop in nearly two years, as higher borrowing costs hurt demand for goods.

Still, Federal Reserve officials said interest rates needed to rise beyond 5% even as inflation shows signs of having peaked and economic activity is slowing.

Adding to the pall, data from the American Petroleum Institute showed U.S. crude oil inventories rose by about 7.6 million barrels in the week ended Jan. 13, according to market sources.

The mean average forecast from a Reuters’ poll of nine analysts had been for a fall of about 600,000 barrels.

The big build marked the second consecutive week of large inventory increases.

However, distillate stockpiles, which include diesel and heating oil, fell by about 1.8 million barrels against analysts’ expectations for a 120,000-barrel increase.

The API report was delayed by a day due to Monday’s Martin Luther King Day public holiday in the United States. The government’s Energy Information Administration will release its weekly inventory report on Thursday.

With aggressive rate hikes still on the cards, the U.S. dollar climbed, weighing on oil demand as a stronger greenback makes the commodity more expensive for those holding other currencies.

Still, International Energy Agency (IEA) head Fatih Birol said on Thursday that energy markets could be tighter in 2023, adding he hoped prices would not rise further in order to ease the pressure on energy-importing developing countries.