LONDON, 1 June, 2011 – Panmure Gordon & Co., a leading independent institutional stockbroker and investment bank, is pleased to announce its appointment as broker to Mediterranean Oil & Gas plc (MOG.L), with immediate effect. Mediterranean Oil & Gas owns production, development and advanced oil and gas assets in countries that include Italy, Malta and France.

Director in Panmure Gordon’s investment banking team, Katherine Roe, commented: “We are delighted to welcome Mediterranean Oil & Gas as Panmure Gordon’s 10th natural resources client, and our third new client in the sector this year.

“Our dedicated natural resources team now advises oil & gas and mining companies with operations ranging from the North Sea and Falklands Islands to Canada, China, Europe, Africa and Brazil.”

Media enquiries:

Nathaniel Webb

Group Communications and Investor Relations Director

T: +44 20 7614 8333

E: nathaniel.webb@panmure.com

About the Panmure Gordon Group

Founded in 1876, Panmure Gordon & Co. (PMR.L) is a leading independent institutional stockbroker and investment bank. Encompassing its US franchise, ThinkEquity, LLC, the Group employs approximately 230 professionals across the US, the UK and Nyon, Switzerland, offering a blend of transatlantic financial services including research, sales and trading, wealth management and asset management. www.panmure.com