Which group is formed by countries that primarily export oil?

The Organization of the Petroleum Exporting Countries, commonly known as OPEC, is formed specifically by countries that are significant exporters of oil. Established to coordinate and unify the petroleum policies of its member countries, OPEC aims to ensure the stabilization of oil markets, secure a steady supply of oil to consumers, and provide a fair return on capital to those investing in the petroleum industry. This organization plays a crucial role in regulating oil production and influencing global oil prices, making it a dominant force in the international energy market.

In contrast, the International Monetary Fund focuses on global financial stability and economic cooperation, the World Health Organization is dedicated to public health and addressing global health issues, and the United Nations serves a broad range of international interests including peace, security, and human rights. None of these organizations specifically pertain to oil production and exportation like OPEC does.