Ouargla (Berber: Wargren or Wargla, Arabic: ورجلان،وَرڤلة‎) is the capital city of Ouargla Province in the Sahara Desert in southern Algeria. It has a flourishing petroleum industry and hosts one of Algeria's universities, the University of Ouargla. The commune of Ouargla had a population of 133,024 in the 2008 census, up from 112,339 in 1998, and an annual population growth rate of 1.7%.