Dammam Well No. 7 — also called the Prosperity Well — is a monument marking the site where Standard Oil of California struck commercially viable oil on 4 March 1938, transforming Saudi Arabia from a poor desert country dependent on pilgrimage revenues into what would become the world's largest oil exporter. The well itself is preserved near the Ithra cultural complex in Dhahran.
The monument stands near the Ithra centre and can be visited as part of a trip to Dhahran. A small explanatory display gives context for the discovery and its consequences. The site is more symbolic than spectacular in itself, but it marks one of the hinge points of 20th-century world history.