Emerald Energy Plc

FOR IMMEDIATE RELEASE 30 October 2006

3D Seismic Acquisition over Gigante Field

Emerald Energy Plc (“Emerald” or the “Company”) is pleased to announce that it has awarded the contract for the acquisition of 3D seismic at the Gigante field in the Upper Magdalene Valley in Colombia to Compania Geofisica Latinoamericana (“CGL”). Under the contract, 58 square kilometres of full fold 3D seismic will be acquired over the Gigante field. The acquisition will commence shortly and is planned to take approximately 2 months, with processing taking up to a further 4 months.

The 3D acquisition is planned to confirm Emerald’s structural interpretation of the field and to assess the potential for further development including the drilling of Gigante #2. In particular, the 3D seismic interpretation is anticipated to reduce the risk in locating any future development wells.

The Gigante field has produced 2.2 million barrels of oil from a single producing well, Gigante 1A, since commencing production in 1999.

A presentation entitled “58km2 3D seismic programme, Gigante field” may be found on the Company’s website at www.emeraldenergy.com

Emeralds’ Chairman, Alastair Beardsall, said:

“The acquisition of 3D seismic over the Gigante field is a significant step forward, allowing us to better image the reservoir, reduce mapping uncertainty of the structure, and plan the best way to realise the potential of this field.”

Enquiries: Helen Manning 020 7925 2440

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