Spain, Unconventional Gas Venture

LENI GAS & OIL PLC

("LGO" or the "Company")

5th November, 2010

SPAIN, UNCONVENTIONAL GAS VENTURE

Leni Gas & Oil plc (LGO) the AIM listed international oil and gas production, development and exploration company, today announces it has signed a binding Non-Disclosure and non-binding Commercial Terms Agreement ("Agreement") setting out the potential terms of an agreement to cooperate with Sorgenia International B.V ("Sorgenia") and Rohöl-Aufsuchungs Aktiengesellschaft ("RAG") to assess a potential joint venture for the exploitation of unconventional gas opportunities in Spain.

As previously reported in May 2010, LGO has identified unconventional gas prospectivity in the Lower Jurassic within the acreage held by the Company which spans over 550 sqkm in the proven Basque-Cantabrian basin in northern Spain. These prospects are currently being assessed.

Sorgenia is a major European conglomerate engaged in the production, import and sales of electricity and gas, and is actively seeking shale gas acquisitions to increase its gas supply in Europe. RAG is major European gas exploration and production company with operations in Austria, Hungary, Germany and Poland and is a recognised leader in shale gas exploitation in Europe

Under terms of the Agreements, LGO, Sorgenia and RAG have agreed an exclusivity period of 10 weeks to complete their assessment of the Company's unconventional gas opportunities in Spain and finalise full terms and conditions of a formal three way agreement between the parties based on the Commercial Terms Agreement.

David Lenigas, Executive Chairman, commented:

"LGO has now attracted four international companies to potentially assist with the full exploitation of the Company's entire Spain acreage."

"The existing producing oilfields, developments and exploration prospects have been neglected for many years and with BP agreeing to take long term oil sales for their refinery on the east coast of Spain, Praxair participating in a nitrogen enhanced oil recovery joint venture announced last month and now this agreement with Sorgenia and RAG to co-explore and develop the unconventional gas potential of our acreage, we see tremendous medium to long term potential for the Company."

"The Sorgenia and RAG venture on completion will significantly de-risk the unconventional gas potential of our Spain acreage and shall accelerate the development of this very important and strategic asset. "

Competent Person's Statement

The information contained in this announcement has been reviewed and approved by Fraser S Pritchard, Executive Director for Leni Gas & Oil Plc (member of the SPE) who has over 20 years relevant experience in the oil industry.

Enquiries:

Leni Gas & Oil plc

David Lenigas, Executive Chairman

Fraser Pritchard, Executive Director

Tel +44 (0) 20 7016 5103

Beaumont Cornish Limited

Roland Cornish / Rosalind Hill Abrahams

Tel +44 (0) 20 7628 3396

Mirabaud Securities Limited

Rory Scott

Tel +44 (0) 20 7878 3360

Pelham PR

Mark Antelme

Tel + 44 (0)20 3178 6242

NOTES TO EDITORS

Leni Gas & Oil Plc is an international oil and gas exploration, development and production company headquartered in London, trading on the London Stock Exchange's AIM index. LGO's strategy is to acquire projects and businesses within the oil and gas sector that contain a development premium which can be unlocked through a combination of financial, commercial, and technical expertise.

LGO operates a low risk portfolio of production expansion assets in the US Gulf of Mexico, Spain, Trinidad and Malta with significant play upside using similar strategies to leverage technologies and proven production enhancement techniques. LGO specifically targets near term production with upside exploitation potential and manages its portfolio to ensure all assets have accelerated incremental reserves and production enhancement programs.

GLOSSARY

sqkm = square kilometres