Explainer-What is OPEC+ and how does it affect oil prices?

LONDON, April 28 (Reuters) - The United Arab Emirates, one of OPEC+'s largest producers, will leave the oil producers' alliance on May 1, it said on Tuesday.The Organization of the Petroleum Exporting Countries and allies, including Russia, are known collectively as OPEC+. Last year, the group produced nearly 50% of the world's oil and oil liquids, according to International Energy Agency estimates. The UAE is the fourth largest producer in OPEC+.Below are facts about OPEC+ and its role.WHAT ARE...