The Organization of the Petroleum Exporting Countries (OPEC, OH-pek) is an intergovernmental organization of 13 countries. Founded on 14 September 1960 in Baghdad by the first five members (Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela), it has, since 1965, been headquartered in Vienna, Austria, although Austria is not an OPEC member state. As of September 2018, the 13 member countries accounted for an estimated 44 percent of global oil production and 81.5 percent of the world's proven oil reserves, giving OPEC a major influence on global oil prices that were previously determined by the so-called "Seven Sisters" grouping of multinational oil companies.

The formation of OPEC marked a turning point toward national sovereignty over natural resources, and OPEC decisions have come to play a prominent role in the global oil market and international relations. The effect can be particularly strong when wars or civil disorders lead to extended interruptions in supply. In the 1970s, restrictions in oil production led to a dramatic rise in oil prices and in the revenue and wealth of OPEC, with long-lasting and far-reaching consequences for the global economy. In the 1980s, OPEC began setting production targets for its member nations; generally, when the targets are reduced, oil prices increase. This has occurred most recently from the organization's 2008 and 2016 decisions to trim oversupply.

Economists have characterized OPEC as a textbook example of a cartel that cooperates to reduce market competition, but one whose consultations are protected by the doctrine of state immunity under international law. In the 1960s and 1970s, OPEC successfully restructured the global oil production system so that decision-making authority and the vast majority of profits is in the hands of oil-producing countries. Since the 1980s, OPEC has had a limited impact on world oil supply and price stability, as there is frequent cheating by members on their commitments to one another, and as member commitments reflect what they would do even in the absence of OPEC.Current OPEC members are Algeria, Angola, Equatorial Guinea, Gabon, Iran, Iraq, Kuwait, Libya, Nigeria, the Republic of the Congo, Saudi Arabia, the United Arab Emirates and Venezuela. Meanwhile, Ecuador, Indonesia and Qatar are former OPEC members. A larger group called OPEC+ was formed in late 2016 to have more control on the global crude oil market.

Libya ( (listen); Arabic: ليبيا, romanized: Lībiyā), officially the State of Libya (Arabic: دولة ليبيا, romanized: Dawlat Lībiyā), is a country in the Maghreb region in North Africa. It is bordered by the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad to the south, Niger to the southwest, Algeria to the west, and Tunisia to the northwest. Libya is made of three historical regions: Tripolitania, Fezzan, and Cyrenaica. With an area of almost 700,000 square miles (1.8 million km2), it is the fourth-largest country in Africa and the Arab world, and the 16th-largest in the world. Libya has the 10th-largest proven oil reserves in the world. The largest city and capital, Tripoli, is located in western Libya and contains over three million of Libya's seven million people.Libya has been inhabited by Berbers since the late Bronze Age as descendants from Iberomaurusian and Capsian cultures. In ancient times the Phoenicians established city-states and trading posts in western Libya while more recently the Ottoman Empire controlled the northern coastline of Libya. Parts of Libya were variously ruled by Carthaginians, Persians, Egyptians and Macedonians before the entire region becoming a part of the Roman Empire. Libya was an early center of Christianity. After the fall of the Western Roman Empire, the area of Libya was mostly occupied by the Vandals until the 7th century when invasions brought Islam to the region. In the 16th century, the Spanish Empire and the Knights of St John occupied Tripoli until Ottoman rule began in 1551. Libya was involved in the Barbary Wars of the 18th and 19th centuries. Ottoman rule continued until the Italo-Turkish War which resulted in the Italian occupation of Libya and the establishment of two colonies, Italian Tripolitania and Italian Cyrenaica (1911–1934), later unified in the Italian Libya colony from 1934 to 1947.

During the Second World War, Libya was an area of warfare in the North African Campaign. The Italian population then went into decline. Libya became independent as a kingdom in 1951. A bloodless military coup in 1969, initiated by a coalition led by Colonel Muammar Gaddafi, overthrew King Idris I and created a republic. Gaddafi was often described by critics as a dictator, and was one of the world's longest serving non-royal leaders, ruling for 42 years. He ruled until being overthrown and killed in the 2011 Libyan Civil War, with authority transferred to the General National Congress. By 2014 two rival authorities claimed to govern Libya, destabilizing the country and leading to a second civil war, with parts of Libya split between the Tobruk and Tripoli-based governments as well as various tribal and Islamist militias. The two main warring sides signed a permanent ceasefire on 23 October 2020 and a unity government took authority.Libya is a member of the United Nations, the Non-Aligned Movement, the African Union, the Arab League, the OIC and OPEC. The country's official religion is Islam, with 96.6% of the Libyan population being Sunni Muslims.