Which of the following country has exited the Organization of the Petroleum Exporting Countries (OPEC) with effect from January 1, 2024?

Angola

Angola, a significant oil-producing nation, exited the Organization of the Petroleum Exporting Countries (OPEC) with effect from January 1, 2024. This move follows the footsteps of Ecuador in 2020 and Qatar in 2019, reflecting a trend of nations with relatively small oil output distancing themselves from the influential oil-exporting organization.