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Eni successfully completes the Area 4 appraisal plan in Mozambique

San Donato Milanese (Milan), 24 April 2013 – Eni successfully finalized the appraisal campaign of the discoveries in Area 4 in Mozambique with the drilling and testing of Mamba South 3, which is the ninth well drilled in the exploration permit.

The well results have exceeded expectations and Eni has updated the estimate of the Mamba Complex and Coral discoveries to 80 Trillion cubic feet (Tcf) of gas in place.

Mamba South 3 was drilled in water depth of 1,571 meters and reached a total depth of 4,948 meters. The well is located approximately 6 kilometers North of Mamba South 1, 12 kilometers north west of Mamba South 2 and approximately 50 kilometers off the Cabo Delgado coast.

The well encountered 214 meters of gas pay in high quality Oligocene and Eocene reservoirs. The discovery proved the existence of hydraulic communication with the same reservoirs of Mamba South 1 and Mamba South 2, Mamba North East 1 and Mamba North East 2 wells.

Eni is now finalizing the development plans of this huge resource base.

The plan is now to drill an exploration prospect (Agulha 1) in the southern part of Area 4, in order to assess the hydrocarbon potential of untested deeper plays in Area 4.

Eni is the operator of Area 4 with a 70% participating interest. The other partners of the joint venture are Galp Energia (10%), KOGAS (10%) and ENH (10%, carried through the exploration phase).

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