Saudi ARAMCO

Saudi Aramco, the state-owned national oil company of Saudi Arabia, is the largest oil corporation in the world and the world's largest in terms of proven crude oil reserves and production. Headquartered in Dhahran, Saudi Arabia, Saudi Aramco also operates the world's largest single hydrocarbon network, the Master Gas System.
 
From its headquarters in Dhahran on the eastern shores of the Arabian Peninsula, Saudi Aramco manages virtually all of Saudi Arabia's enormous hydrocarbon enterprise. From the giant Ghawar and Safaniya oil fields, the world's largest onshore and offshore fields, to the leading-edge technology at the Exploration and Petroleum Engineering Center, and from one of the largest and most modern fleets of supertankers to refining and marketing joint ventures around the globe, Saudi Aramco is positioned to continue to play its leading role in meeting the world's demand for oil. Saudi Aramco is responsible for 99 percent of the Kingdom's proven crude oil reserves of 259 billion barrels (41.2 1010m³) -- about a quarter of the world's total conventional oil reserves.
 

SABIC

SABIC (Saudi Basic Industries Corp) is a diversified manufacturing company, active in chemicals and intermediates, industrial polymers, fertilizers and metals. It is the largest public company in Saudi Arabia as listed in Tadawul, but the Saudi government still owns 70% of its shares. Private sector shareholders are from Saudi Arabia and other countries of the six-nation Gulf Cooperation Council (GCC)

SABIC is currently the second largest global ethylene glycol producer and is expected to become number one after the introduction of these new projects. SABIC is the third largest polyethylene manufacturer, the fourth largest polyolefins manufacturer and the sixth largest polypropylene manufacturer.The company is based in Riyadh and has interests in 17 affiliated companies which range from full ownership to significant partial participation.
 

Saudi Electricity Company

Saudi Electricity Co. is engaged in generating and distributing electricity power supply in the Kingdom of Saudi Arabia directly or through its wholly or partially owned subsidiaries.

Petro Rabigh

A joint venture between Saudi Aramco and Sumitomo Chemical, the plant is valued at around US$10 billion, making Sumitomo’s 50 per cent share the largest foreign investment ever in Saudi Arabia. Financing for the development featured the largest Islamic facility of any project finance transaction to date.

Petro Rabigh has an on-site R&D facility, and continuously sends employees around the world to keep up with the latest innovations, including the US, Europe, South America and Asia. The Rabigh plant has its own self-contained city, complete with medical facilities, schools, a shopping mall, sports and recreational facilities, a beachfront and a park.

Tasnee

Formerly known as National Industrialization Company was founded in 1985 with a paid capital investment of SR 30 Million, as the first Saudi joint-stock company wholly owned by the private sector. The company was set with a strong believe that industrialization is the right choice for economy diversification and accelerating the wheel of development of the Kingdom.

Saudi Chevron

On July 1, 2000, Chevron Corporation and Phillips Petroleum Company, now ConocoPhillips, combined their worldwide petrochemical businesses, excluding Chevron’s oronite additives business, to form Chevron Phillips Chemical Company LLC. Chevron and ConocoPhillips each own 50 percent of Chevron Phillips Chemical.