Ghawar Field
Discovered 1948, onshore Saudi Arabia, over 5 million barrels per day at its 1980s peak.
Overview
The largest conventional oil field ever found, stretching about 230 km by 30 km in the Eastern Province. Ghawar has produced well over 60 billion barrels from Jurassic Arab D limestone. Uthmaniyah, Ain Dar, Shedgum, Hawiyah and Haradh are its operating segments. It remains the crown jewel of Saudi Aramco and the anchor of world spare capacity.
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