AlQa'dah 5, 1432, Oct 3, 2011, SPA -- Prince Sultan bin Salman, President of the Saudi Commission for Tourism and Antiquities, signed here today an agreement with Exxon Mobil Saudi Arabia Inc. for the company's sponsoring of a Saudi antiquities exhibition to be held in a number of cities in the United States during the years 2012-2013. The signing ceremony was attended by a number of officials.