is a Saudi Arabian multinational petroleum and natural gas company based in Dhahran, Saudi Arabia. It is one of the largest companies in the world by revenue. Saudi Aramco has both the world’s second-largest proven crude oil reserves, at more than 270 billion barrels (4.3×1010 m3), and largest daily oil production of all oil producing companies . On 11 December 2019, the company’s shares commenced trading on the Tadawul stock exchange. The shares rose to 35.2 riyals, giving it a market capitalisation of about $1.88 trillion , and surpassed the $2 trillion mark on the second day of trading.Saudi Aramco operates the world’s largest single hydrocarbon network, the Master Gas System. Its 2013 crude oil production total was 3.4 billion barrels (540,000,000 m3), and it manages over one hundred oil and gas fields in Saudi Arabia, including 288.4 trillion standard cubic feet (scf) of natural gas reserves. Saudi Aramco operates the Ghawar Field, the world’s largest onshore oil field, and the Safaniya Field, the world’s largest offshore oil field.On 9 April 2019, Aramco issued bonds collectively valued at US$12 billion. Its first international bond issue received more than $100 billion in orders from foreign investors, which breaks all records for a bond issue by an emerging market entity.On Wednesday, 12 June 2019, Aramco reported its net income at $111.1 billion in 2018 compared to $75.9 billion in 2017, with total revenues at $355.9 billion in 2018.