Town residences one among the most important Arabian oil refineries on the earth along with the Kingdom, processing all around four hundred thousand bbl of heavy and medium Arabian oil day by day. 1922 map from the walled town of Riyadh In 1750, Muhammad ibn Abd al-Wahhab formed an alliance https://e-web-directory.com/listings12982898/top-latest-five-riyadh-province-urban-news