Dammam is the capital of Saudi Arabia's Eastern Province and one of the country's major urban centres, sitting on the western shore of the Arabian Gulf. The city grew rapidly with the oil industry after the discovery of petroleum in 1938 — Dammam Well No. 7 struck oil on 4 March 1938 and transformed Saudi Arabia's fortunes. Today Dammam forms part of a large conurbation with the neighbouring cities of Al-Khobar and Dhahran. It is an important commercial hub with significant Indian, Pakistani, and other expatriate communities.
The Dammam Corniche along the Gulf waterfront is the main public space, lively with families in the evenings. The Heritage Village in the old city preserves traditional Arabian architecture and household objects from before the oil era. Near Al-Khobar, the King Fahd Causeway crosses 25 km of shallow Gulf water to Bahrain — the sole road link between the two countries. Half Moon Bay is the best beach in the region. In Dhahran, Ithra — the King Abdulaziz Center for World Culture — is one of the most impressive cultural institutions in the Arabian Peninsula.
Dammam is notably more conservative than Saudi Arabia's largest cities. There are no bars or alcohol, and public entertainment was for many years heavily restricted, though the country has been opening up cultural and sporting venues since the Vision 2030 reform programme began in 2016.