The Organization of the Petroleum Exporting Countries is an intergovernmental organization of As of 2020 nations. Founded on 14 September 1960 in Baghdad by the first five members, it has since 1965 been headquartered in Vienna, Austria. As of 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. A larger group called OPEC+ was formed in late 2016, to have more control on global crude oil market. Due to the COVID-19 pandemic the demand for OPEC oil has fallen to a 30-year low in second quarter of 2020. More information...
In June 2020 the website opec.org was on the 6,843rd place in the ranking of the most reliable and popular sources in multilingual Wikipedia from readers' point of view (PR-score). If we consider only frequency of appearance of this source in references of Wikipedia articles (F-score), this website was on the 14,185th place in June 2020. From Wikipedians' point of view, "opec.org" is the 10,033rd most reliable source in different language versions of Wikipedia (AR-score).
The website is placed before poparchives.com.au and after armstat.am in multilingual PR ranking of the most reliable sources in Wikipedia.
Popularity and reliability assessment of sources in references of Wikipedia in different languages. Data extraction based on complex method using Wikimedia dumps in July 2020. To find the most popular and reliable sources we used information about over 200 million references of Wikipedia articles. More details in the research "Modeling Popularity and Reliability of Sources in Multilingual Wikipedia". Values for PR-score and AR-score were additinaly increased 100 times (to distinguish smaller values in the ranking).