Malta PSC Extension

For Immediate Release

1 June 2011

LENI GAS AND OIL PLC

("LGO" or the "Company")

Malta PSC Extension

Leni Gas & Oil plc today announces that it has been informed by Mediterranean Oil and Gas plc ("MOG") that the participants in Malta Area 4 (Blocks 4, 5, 6, 7) in which LGO holds a 10% interest have been granted an 18 month extension to the first exploration period of the Area 4 Production Sharing Contract ("PSC") by the Maltese Government.

The PSC has been extended until 18 January 2013 under the following conditions:

·; Payment of an extension bonus of US$300,000 in July 2011.

·; Commitment to acquire 1,000 sq km of 3D seismic by January 2012.

·; Agreement that if a well is not drilled by 18 January 2013 that a further payment of US$5 million will be due to the Maltese Government, unless there are technical reasons for not drilling a well.

In addition, MOG has indicated that it is in advanced negotiations with a third party to farm out 75% of the working interest held by its wholly owned subsidiary Phoenicia Energy Limited.

Neil Ritson, LGO's Chief Executive, stated: "This is excellent news as the combination of a PSC extension and a new partner will permit the work on Area 4 to be advanced and we would hope to see agreement on a well to be drilled in 2012."

Competent Person's Statement:

The information contained in this announcement has been reviewed and approved by Neil Ritson, Chief Executive Officer and Director for Leni Gas & Oil Plc who has 35 years of relevant experience in the oil industry. Mr. Ritson is a member of the Society of Petroleum Engineers, an Active Member of the American Association of Petroleum Geologists and is a Fellow of the Geological Society of London.

Enquiries:

Leni Gas & Oil plc

David Lenigas, Executive Chairman

Neil Ritson, Chief Executive Officer

Tel +44 (0) 20 7016 5103

Panmure Gordon plc

Katherine Roe / Hannah Woodley

Tel +44 (0)20 7459 5744

Beaumont Cornish Limited

Roland Cornish / Rosalind Hill Abrahams

Tel +44 (0) 20 7628 3396

Pelham Bell Pottinger

Mark Antelme / Henry Lerwill

Tel + 44 (0)20 7861 3232

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 and Trinidad, and holds non-operated exploration acreage Malta. LGO's assets have significant play upside using strategies which leverage novel extraction 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 programmes.