Sonatrach is an Algerian government-owned company formed to explore the hydrocarbon resources of the country. It has some concessions in Libya, Mauritania, Peru, Yemen and Venezuela
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Spain's Naturgy Energy Group and Algeria's Sonatrech agreed to acquire a 42.09% stake in the Medgaz Pipeline from Abu Dhabi's state fund Mubadala.
Naturgy is paying $493 million for a 34% stake while Sonatrech funds the remainder.