Ghawar (Arabic: الغوار) is an oil field located in Al-Ahsa Governorate, Eastern Province, Saudi Arabia.

In April 2019, the company first published its profit figures since its nationalization nearly 40 years ago in the context of issuing a bond to international markets.

[4][3] Ghawar occupies an anticline above a basement fault block dating to Carboniferous time, about 320 million years ago; Cretaceous tectonic activity, as the northeast margin of Africa began to impinge on southwest Asia, enhanced the structure.

[5] In the early 1940s, Max Steineke, Thomas Barger and Ernie Berg noted a bend in the Wadi Al-Sahbah dry riverbed.

[2] In 2009, it was estimated that Ghawar produced about 5 million barrels (790,000 m3) of oil a day (6.25% of global production),[11] a figure which was later shown to be substantially overestimated.

In April 2010, Saad al-Tureiki, Vice-President for Operations at Aramco, stated, in a news conference reported in Saudi media, that over 65 billion barrels (10.3 km3) have been produced from the field since 1951.

[11] Matthew Simmons, in his 2005 book Twilight in the Desert, suggested that production from the Ghawar field and Saudi Arabia may soon peak.