Mazrouei, who briefed reporters on the sidelines of the World Utilities Congress, said he was concerned about future supply shortages due to low investment.
"I'm not that worried about the very short term, I think we can manage balancing the supply with demand. I'm more worried about the level of investment required for years to come," he said.
In a surprise move in early April, Saudi Arabia and other OPEC+ members announced further oil output cuts of around 1.2 million barrels per day.
The announcement helped push oil prices sharply higher, but those gains have since been erased as fears of a global economic slowdown spook investors.
Brent crude prices were trading at just over $76 a
barrel on Tuesday, well below a recent high of $87.49 hit on
April 12.
The Organization of the Petroleum Exporting Countries and
allies led by Russia, or OPEC+, are set to meet in Vienna on
June 4 to decide on their next course of action.
(Reporting by Maha El Dahan
Writing by Ahmad Ghaddar in London; Editing by Louise Heavens,
Kirsten Donovan)