The loss of the UAE, a longstanding OPEC member, could create disarray and weaken the group, which has usually sought to show a united front despite internal disagreements over a range of issues from geopolitics to production quotas.
UAE Energy Minister Suhail Mohamed al-Mazrouei told Reuters the decision was taken after a careful look at the regional power's energy strategies.
Asked whether the UAE consulted with OPEC's de-facto leader Saudi Arabia, he said the UAE did not raise the issue with any other country.
"This is a policy decision, it has been done after a careful look at current and future policies related to level of production," the energy minister said.
The country will withdraw from the Organisation of the Petroleum Exporting Countries effective May 1, the state news agency WAM said on Tuesday.
The UAE's decision had been rumoured as a possibility for some time, as it pushed back in recent years against OPEC production quotas it felt had been too low - meaning it was not able to sell as much oil to the world as it had wanted.
OPEC Gulf producers have already been struggling to ship exports through the Strait of Hormuz, a choke point between Iran and Oman through which a fifth of the world's crude oil and liquefied natural gas normally passes, because of Iranian threats and attacks against vessels.
Mazrouei said the move, in which the UAE will also leave the OPEC+ grouping, would not have a huge effect on the market because of the situation in the strait.
The UAE's exit from OPEC is likely to be welcomed by US President Donald Trump, who in a 2018 address to the United Nations General Assembly accused the organisation of "ripping off the rest of the world" by inflating oil prices.
Trump has also linked US military support for the Gulf with oil prices, saying that while the US defends OPEC members they "exploit this by imposing high oil prices".
The move came after the UAE, a regional business and financial hub and one of the United States' most important allies, criticised fellow Arab states for not doing enough to protect it from numerous Iranian attacks during the war.
Anwar Gargash, the diplomatic adviser for the UAE president, criticised the Arab and Gulf response to the Iranian attacks in a session at the Gulf Influencers Forum on Monday.
"The Gulf Cooperation Council countries supported each other logistically but politically and militarily, I think their position has been the weakest historically," Gargash said.
"I expect this weak stance from the Arab League and I am not surprised by it but I haven't expected it from the (Gulf) Cooperation Council and I am surprised by it," he said.
Mazrouei noted the UAE has been a member of OPEC and OPEC+ for a long time but he said the world would demand more energy, suggesting his country's move will help meet those needs.
The UAE's exit comes as global spare capacity hovers at historically low levels, leaving the oil market increasingly tight.
Ultimately, the UAE views its exit from the bloc as a net positive for consumers and the broader global economy, ensuring a more responsive and reliable energy supply.
with DPA and AP
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