Iranian OPEC Governor Hossein Kazempour Ardebili, for his part, didn't waste time mocking the US president, saying that Trump had raised prices through his tweets and if he continued to do so, there would "not be that much oil available to respond to your [Trump's] orders."
"Your tweets have increased the prices by at least $10. Please stop this method," stated Ardebili as quoted by the SHANA news agency on Thursday.
The official Saudi Press Agency (SPA), however, mentioned later that Trump and King Salman had simply agreed on "a need to make efforts to maintain the stability of oil markets," without concluding any formal deal.
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Following the report, the US president expressed disapproval of OPEC in a tweet.
OPEC countries and other oil producers reached an agreement at the end of 2016 to reduce oil output by 1.8 million barrels per day compared to October 2016. The deal, aimed at boosting oil prices, was extended twice, with the last one set to last until the end of 2018.