KEY POINTS
  • Oil prices tumble 3 percent after President Trump tweeted at OPEC, telling the group prices are too high.
  • Trump has not tweeted about OPEC since early December, right before the producer group and allies defied his calls to keep pumping at high volumes.
  • The so-called OPEC+ alliance launched a fresh round of price-boosting output cuts in January.
President Donald Trump speaks during a rally at Florida International University on February 18, 2019 in Miami, Florida.

Oil prices tumbled more than 3 percent on Monday after President Donald Trump publicly urged OPEC to lower the cost of crude, putting pressure on the Saudi-led group to soften its price-boosting output cuts.

"Oil prices getting too high. OPEC, please relax and take it easy. World cannot take a price hike - fragile!" the president said in an early morning tweet.