CERP.L Regulatory News (CERP)

LENI GAS & OIL PLC

("LGO" or the "Company")

27 September, 2010

HONTOMIN 2 ENCOUNTERS OIL IN SPAIN

Leni Gas & Oil plc (LGO) the AIM listed international oil and gas production, development and exploration company, today announces that yesterday at 1600 hours GMT+1 the Hontomin 2 well in northern on-shore Spain encountered oil at 1350m with oil flowing to surface.

The objective of the Hontomin extended well test program is to appraise the long-term production potential of the Hontomin-2 well.

Drilling of the top reservoir formation interval has been completed and light oil has been observed flowing to surface. Full monitoring of the well will be conducted during the next few days prior to recommencement of drilling to open the bottom reservoir formation interval.

All well production from Hontomin will be transported to the central production facilities at the Ayoluengo operations base for processing and oil sales.

David Lenigas, Chairman of LGO stated:

"This is an extremely important development for the Company, and oil flowing to surface is an encouraging sign for this well."

"Spain is one of the Company's most important assets and there is a great deal of new work being done between here and the end of the year on the various fields to enhance overall production as a direct result of the extensive reworking of the database this year."

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.