Columbia Encyclopedia
Search results
500 results found
Organization of Petroleum Exporting Countries
(Encyclopedia)Organization of Petroleum Exporting Countries (OPEC), multinational organization (est. 1960, formally constituted 1961) that coordinates petroleum policies and economic aid among oil-producing nations...petroleum
(Encyclopedia)petroleum, oily, flammable liquid that occurs naturally in deposits, usually beneath the surface of the earth; it is also called crude oil. It consists principally of a mixture of hydrocarbons, with t...cracking of petroleum
(Encyclopedia)cracking of petroleum: see petroleum. ...OPEC
(Encyclopedia)OPEC: see Organization of Petroleum Exporting Countries. ...Low Countries
(Encyclopedia)Low Countries, region of NW Europe comprising the Netherlands, Belgium, and the Grand Duchy of Luxembourg. The northern parts of the Netherlands and Belgium form a low plain bordering on the North Sea...Organization of Islamic Cooperation
(Encyclopedia)Organization of Islamic Cooperation (OIC), international organization of 57 countries whose inhabitants are mainly Muslim, est. 1969 as the Organization of the Islamic Conference, renamed 2011. It is ...International Labor Organization
(Encyclopedia)International Labor Organization (ILO), specialized agency of the United Nations, with headquarters in Geneva. It was created in 1919 by the Versailles Treaty and affiliated with the League of Nations...liquefied petroleum gas
(Encyclopedia)liquefied petroleum gas or LPG, mixture of gases, chiefly propane and butane, produced commercially from petroleum and stored under pressure to keep it in a liquid state. The boiling point of liquefie...Khalifa bin Hamad al-Thani
(Encyclopedia)Khalifa bin Hamad al-Thani, 1932–2016, emir of Qatar (1972–95). Khalifa was the son of Hamad bin Abdullah al-Thani, the second emir's heir apparent, but Hamad died (1948) before the emir. During t...National Petroleum Reserve
(Encyclopedia)National Petroleum Reserve, area, c.23 million acres (9.32 million hectares), Alaska North Slope, situated W of Prudhoe Bay and the Arctic National Wildlife Refuge. The reserve, which is the largest r...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
