Continuing the successful exploratory campaigns of previous years Repsol makes new gas discovery in Algeria

  • The discovery in the Tan Emellel Sud-Ouest-2 (TESO-2) exploration well is the third find in the Sud-Est Illizi block.
  • Repsol (52.5%) is the operator leading the consortium that has made the discovery in partnership with Enel (27.5%) and GDF-SUEZ (20.0%).
  • Sonatrach will participate, with a 51% stake, in the development and production phases.
  • In Algeria, Repsol is currently active in one production operation (Tin-Fouyé Tabankort), one development project (Reggane Nord) and two exploration blocks (Sud-Est Illizi and Boughezoul).

Press Release


Repsol has made its third gas discovery in the Illizi basin, in the southeast of Algeria. The discovery in Tan Emellel Sud-Ouest-2 (TESO-2) exploration well in the Sud-Est Illizi block is the continuation of an already very successful exploration campaign in the high-potential area.

Repsol is the operator of the consortium with a 52.5% stake in partnership with Enel (27.5%) and GDF-SUEZ (20%). Sonatrach will hold a 51% stake in the development and production phases, with the existing members maintaining their existing proportions in the remaining 49%.

The gas discovery was made at a depth of 1,307 metres (4,288 feet) and well testing delivered a gas flow rate of 175,000 cubic metres per day (m³/day) and 90 barrels per day (bbl/d) of condensate with a 32/64" choke.

Repsol aims to drill at least four more additional wells in order to appraise the previous discoveries within the Sud-Est Illizi block.

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