From a quiet fishing village to the world's largest civil engineering project
In short: Once a humble settlement known for sweet water springs and pearling, Jubail has undergone a radical metamorphosis. Since 1975, it has evolved into the world's largest industrial city, a massive petrochemical hub that serves as a cornerstone of Saudi Arabia's economy and contributes significantly to the nation's non-oil exports.
The history of Jubail spans millennia, with human habitation dating back 7,000 years to the people of Dilmun. In the early Islamic period, the site was known as 'Aynayn, or 'two springs,' celebrated for its date palms and literary culture. By the early 20th century, the modern town had emerged as a center for fishing and pearling, though it faced economic decline in the 1930s as Japan’s cultured pearl industry rose. A brief period of relevance followed in 1933, when geologists arrived to begin the first oil exploration efforts in the Kingdom.
The city's modern identity began in 1975, when the Saudi government designated it as the site for a massive industrial complex. Managed by the Royal Commission for Jubail and Yanbu, the project transformed the landscape into a sprawling 1,016-square-kilometer industrial zone. This development included the construction of refineries, steel mills, and the world's largest desalination plant, which in 2019 set a Guinness World Record by producing 5.6 million cubic meters of water daily. Today, the city contributes about 7% of Saudi Arabia's total GDP.
Infrastructure remains a central theme in Jubail's ongoing expansion. Bechtel has managed the project since the mid-1970s, including the $3.8 billion Jubail II expansion initiated in 2004. Connectivity is also a priority, with projects like the Jubail-Qassim Expressway designed to drastically reduce travel distances across the region. While the city has faced challenges—including being targeted during the 2026 Iran War—it remains a vital industrial engine, housing major entities like SABIC and operating as a critical node for global trade through its extensive port facilities.
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Sources
- Summary by Intellect · source: Jubail
- Also: Wikidata — Jubail · CC0
- Also: Wikidata — Jubail · CC0
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