Eni increases the Mamba South gas discovery in Mozambique by 50%

San Donato Milanese (Milan), 27 October 2011 – Eni announces that the discovery of gas made in the exploratory prospectus of Mamba South 1, Area 4 offshore Mozambique, is about 50% larger than what announced by the Company on October 20th. During deepening of the well, it encountered a new separated pool that contains a potential of up to 7.5 Tcf of gas in place in clean sands from the Eocene age. The new sequence has about 90m of gross gas pay and has also been successfully cored.       

The well will be now drilled to the total depth of about 5000 meters after which Eni will move to drill the second commitment well, Mamba North 1, located about  22km north of Mamba South 1 location.

It is expected that the unprecedented potential of Tertiary Play existing in area 4 will be further defined in the forthcoming appraisal campaign.

Eni has already begun the front end activities to timely market the gas both internationally and locally.

Eni considers that this discovery can lead to a potential of up to 22.5 Tcf of gas in place in the Mamba South Area.

Eni is the operator of Offshore Area 4 with a 70-percent participating interest. Co-owners in the area are Galp Energia (10 percent), KOGAS (10 percent) and ENH (10 percent, carried through the exploration phase).

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