Saudi Arabia and OPEC's focus is on ensuring long-term market stability to meet growing demand, including from the U.S. and the rise of artificial intelligence, Saudi Minister Alibrahim said. Read also: Saudi summit helped isolate Russia,

U.S. President Donald Trump on Thursday proved that words can be just as powerful as actions — at least temporarily — after his promise to ask the Saudis and OPEC to lower the cost of oil led to a downturn in crude prices.

Crude futures are headed for weekly declines after U.S. President Trump outlined plans to boost domestic production and said he would ask Saudi Arabia and OPEC to lower oil prices. Brent crude and WTI both rose 0.