Oil prices hit a new four-year high on Tuesday after OPEC dismissed President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE's calls to increase supply and lower prices.

The global benchmark for fuel prices, Brent crude, rose 1 percent to $81.31 a barrel Tuesday on the New York Mercantile Exchange, The Wall Street Journal reports. Light, sweet crude rose to $72.46 a barrel.

OPEC has dismissed Trump's calls to increase production.

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Saudi Energy Minister Khalid al-Falih, whose country is a leader of OPEC , said Sunday that the group could produce 1.5 million more barrels per day, but the market did not warrant that increase.

"The markets are adequately supplied," Falih said Sunday, according to Reuters. "I don't know of any refiner in the world who is looking for oil and is not able to get it."

Trump has gone after OPEC for high oil prices for months.

He repeated those calls Thursday and suggested that U.S. military assistance may be contingent on them boosting supply.

We protect the countries of the Middle East, they would not be safe for very long without us, and yet they continue to push for higher and higher oil prices! We will remember. The OPEC monopoly must get prices down now! — Donald J. Trump (@realDonaldTrump) September 20, 2018

According to CNN, Trump went after the group again on Tuesday, saying at the U.N. that "OPEC and OPEC nations are, as usual, ripping off the rest of the world. And I don't like it. Nobody should like it."

"We defend many of these nations for nothing and then they take advantage of us by giving us high oil prices," he added.

“OPEC and OPEC nations are, as usual, ripping off the rest of the world. And I don’t like it. Nobody should like it. We defend many of these nations for nothing and then they take advantage of us by giving us high oil prices,” Trump says pic.twitter.com/Kum8yOrIFK — CNN Politics (@CNNPolitics) September 25, 2018

OPEC holds 40 percent of the market share on crude oil, according to Forbes, and has long used their power to control oil prices.

OPEC and 10 other outside countries led by Russia agreed in 2016 to keep supply down to 1.8 million barrels a day starting in January 2017, according to the Journal.

However, Saudi Arabia cut its own supply still further as other OPEC members - namely Iran and Venezuela - experienced production problems.

Updated at 2 p.m.