Agreement on Peruvian exploration Blocks

15 May 2013

Clontarf Energy plc

("Clontarf" or the "Company")

Clontarf Energy plc today announces that it has concluded an agreement on its Peruvian oil and gas exploration Blocks.

Peru Oil and Gas Exploration Limited ("POGEL"), an energy investment company, will undertake responsibility to put up performance bonds and conduct contractual work on the Exploration and Development Contracts on Peruvian Blocks 183 and 188. POGEL will also assume the agreed Peruvian liabilities of Hydrocarbon Exploration Limited, a wholly-owned subsidiary of Clontarf Energy plc.

POGEL is a strategic investor in Peru and intends to develop thermal power generation, producing electricity from natural gas. Its objective is to drill out already defined gas-prone structures in Block 183, which is close to the growing town of Tarapoto. POGEL is also interested in the gas and oil prone structures in Block 188.

Under the Agreement, Clontarf Energy plc will convert its interest to an overriding royalty of 3 per cent on production from any commercial discovery. The royalty payments will be capped at US$5 million per structure, US$10 million per Block and US$20 million in total. The agreement is subject to regulatory approval.

Welcoming the news, Clontarf Energy plc's David Horgan, commented:

"We are delighted to have attracted a strategic investor that recognises the opportunity presented by Peru's large and fast growing gas market. During our work in nearby communities we have experienced power cuts and know that thermal gas-fired power stations offer the best solution to Peru's growing demand for energy.

"POGEL is committed to making quick progress on proving up resources and bringing gas reserves into production. This will benefit all stakeholders, including the local communities, the Peruvian Exchequer, and Clontarf Energy plc shareholders."

For further information please visit http://clontarfenergy.com or contact:

Clontarf Energy plc

John Teeling, Chairman +353 (0) 1 833 2833

David Horgan, Director

James Finn, Director

Nominated Adviser and Joint Broker

Shore Capital

Pascal Keane/Toby Gibbs, Corporate Finance +44 (0)20 7408 4090

Jerry Keen, Corporate Broking

Joint Broker

Optiva Securities Limited

Jeremy King +44(0)20 3137 1904

Jason Robertson +44(0)20 3137 1906

Public Relations

Blythe Weigh Communications +44 (0)20 7138 3204

Tim Blythe +44 (0) 7816 924626

Robert Kellner +44 (0) 7800 554377

Pembroke Communications

David O'Siochain +353 (0) 1 649 6486