The area is rich in natural gas. One of the most promising sites for natural gas production is the Ain Tsila gas field in the Isarene permit, some 57% of which is owned by the Irish company Petroceltic International,[5] 18% by the Italian company Enel,[5] and the rest by the Algerian government-owned Sonatrach.[6] Reportedly, Petroceltic's 56.7% is worth between US$800 million and US$1 billion.[5]
^ ab"Population: Illizi Wilaya"(PDF) (in French). Office National des Statistiques Algérie. Archived from the original(PDF) on 13 November 2011. Retrieved 16 May 2013.