NEW YORK (Reuters) – Oil prices rallied nearly 3% on Friday, a partial rebound from their biggest daily drop in several years on U.S. President Donald Trump’s promise to impose more tariffs on Chinese imports. The tariffs, due to take effect on Sept. 1, intensify the trade war between the world’s top two economies and oil consumers. Any resulting economic slowdown could hurt crude demand. Benchmark Brent crude LCOc1 was up $1.74, or 2.9%, to $62.24 a barrel by 10:42 a.m. EDT (1440 GMT). Brent slid more than 7% on Thursday, the steepest daily drop in more than three years. The U.S. crude benchmark CLc1 gained $1.25, or 2.3%, to $55.20 a barrel, a day after tumbling nearly 8%, the biggest loss in more than four years. Before the slide, crude futures had seen a fragile rally supported by steady drawdowns in U.S. inventories but pressured by a shaky global demand outlook. “We’re obviously coming back pretty substantially at least in the early going because I think people realize that the market was overdone with the selloff yesterday,” said Phil Flynn, an analyst at Price Futures Group in Chicago. “Also, there are some questions as to whether the Trump tariffs are really going to go into effect and if they’re really going to have a negative impact on demand as much as people think.” Trump said he would impose a 10% tariff on $300 billion of Chinese imports and could raise tariffs further if China’s President Xi Jinping failed to move more quickly toward a trade deal. The announcement extends U.S. tariffs to nearly all imported Chinese products. China said it would not accept “intimidation or blackmail” and pledged countermeasures. The U.S. economy expanded by 2.1% in the second quarter, government data showed on July 26, beating economists’ expectations. The market looked toward the weekly U.S. oil rig count, an indicator of future production, at 1 p.m. EDT. The United States last year became the world’s top oil producer and was forecast to set another record in output production this year.