27 November 2006

Kansas Project Update -
Butler and Cowley Counties

Multiple targets identified following successful
seismic programme

Irvine Energy plc, the AIM listed oil and gas exploration and production company, has identified multiple drill targets adjacent to the historically highly productive Blood and Cooley fields in Kansas, following the completion of an eight square mile 3D seismic survey. The survey is the first of four to be completed totalling approximately 50 square miles, which are being shot to identify structures in south central Kansas, where Irvine owns a 75% interest in 112,000 acres of oil and gas licences.

The 3D seismic survey was shot across three known field areas in south central Kansas along the Nemaha Uplift in Butler and Cowley counties. The Blood and Cooley fields have produced 250,000BBL of oil from the Mississippian, and additional 225,000BBL of oil from the Kansas City/Lansing and Arbuckle formations.

Initial drilling targets are being finalised by Irvine's partners, Metro Energy Group, with drilling planned to commence in December/January.

Irvine Managing Director Aaron Close said, "The results of the 3D seismic survey have exceeded our expectations, showing multiple oil prospective drilling targets adjacent to the existing oil fields. The structures identified are relatively shallow, which means that drilling costs should be low. The seismic programme is focused on identifying drilling targets and increasing production, whilst building our P1 and P2 reserve base."

For further information please contact:

Irvine Energy plc
Aaron Close, Tel: +1 281 647 7770

Irvine Energy plc
Michael Frayne, Tel: +44 (0) 207 766 7500

Nabarro Wells & Co Ltd
Hugh Oram , Tel: +44 (0) 207 710 7400

St Brides Media & Finance
Hugo de Salis, Tel: +44 (0) 207 242 4477

St Brides Media & Finance
Felicity Edwards, Tel: +44 (0) 207 242 4477

Notes

Irvine Energy plc is an AIM listed company focussed on the development of onshore conventional and unconventional oil and gas projects in the USA. The Company currently has exploration and production projects in Kansas and Oklahoma, which it is operating and developing in conjunction with its joint venture partner Metro Energy Group ("Metro").

It is the Company's objective to become a significant player in both the conventional and unconventional USA oil and gas markets, by building a solid portfolio of assets within the highly prospective Kansas/Oklahoma region. Irvine has an aggressive growth strategy in place with a work programme to advance its production projects and upgrade its P3 resources to P1 status. The Board believes that by assembling a combination of conventional and unconventional plays, it provides the Company with a balanced low risk, high capital efficient development programme.