Bahrain Island and structures a bigger metropolitan and mechanical complex with Al-Khubar, Al-Qaṭīf, and Al-Ẓahrān. The disclosure of monstrous oil holds in the territory in 1938 prompted the extreme change of the once little waterfront settlement into a boomtown that is presently a noteworthy seaport, an oil and petroleum gas focus, the business center of eastern Saudi Arabia, and the eastern end of the railroad to Riyadh. Al-Dammām is strikingly present day, with rambling rural areas—the majority of the city has been worked since the 1940s. Aside from the oil business, the city’s economy is bolstered by agribusiness, particularly dairying. Huge crowds of imported meat and dairy steers are kept on exploratory homesteads. Lord Fayṣal University opened in the city in 1975. In 1999 King Fahd International Airport opened. Pop. (2010 prelim.) 903,312.