حاسي مسعود
The Name Hassi Messaoud means "the well of Messaoud" in Arabic, named after Messaoud Rouabeh, a well-digger in the region. Before the discovery of oil in the region, Hassi Messaoud was not very populated. After discovering oil in the region in the 1950s the French built two petroleum bases. After the nationalization of oil and gas in the early 70s, the bases became property of Sonatrach (the national oil and gas company).