The Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud left the Eastern Region today after patronizing cerebration of Saudi Aramco company on the 75th anniversary of its foundation as well as inaugurating and laying the foundation stones of many developmental, educational and industrial projects in the Eastern Region. At King Abdulaziz Air base in Dhahran, the Monarch was seen off by Prince Mishaal bin Abdulaziz, Chairman of Allegiance-Pledge Commission; Prince Sattam bin Abdulaziz, Deputy Governor of Riyadh region; Prince Mohammed bin Fahd bin Abdulaziz, the Governor of the Eastern Region, a number of Princes, senior officials and a group of citizens.