Saudi Arabia's energy minister met his counterparts from the United Arab Emirates (UAE), Iraq and Libya on Monday following U.S. President Donald Trump's call for lower oil prices and ahead of a meeting next week of OPEC+ oil-producing countries.

"You've got to bring down the oil price, you've got to end that war. They should have done it long ago," President Donald Trump said.

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.