Saudi Aramco

Saudi Aramco (Arabic: أرامكو السعودية‎ ʾArāmkō s-Saʿūdiyyah), officially the Saudi Arabian Oil Company, is a Saudi Arabian national oil and natural gas company based in Dhahran, Saudi Arabia. Saudi Aramco was estimated to be worth $781 billion in 2005, making it the world's most valuable company.

Saudi Aramco has both the largest proven crude oil reserves, at more than 260 billion barrels (4.1×1010 m3), and largest daily oil production. Headquartered in Dhahran, Saudi Arabia, Saudi Aramco operates the world's largest single hydrocarbon network, the Master Gas System. Its yearly production is 7.9 billion barrels (1.26×109 m3), and it managed over 100 oil and gas fields in Saudi Arabia, including 279 trillion standard cubic feet (scf) of natural gas reserves. Saudi Aramco owns the Ghawar Field, the world's largest oil field, and the Shaybah Field, one of the world's largest oil fields.