Mr. Rigas is founding shareholder of Energean Oil & Gas and since 2007 has served as the company's Chairman & CEO. Mr. Rigas is a Petroleum Engineer with a combination of oil & gas and investment banking experience. Prior to setting up Energean Oil & Gas, Mr. Rigas spent 18 years in investment banking and private equity investments.

Between 2001 and 2007, Mr. Rigas was Managing Partner of Capital Connect Venture Managers, a Private Equity fund in Greece with investments in innovative enterprises in IT, Healthcare, Waste Management and Food Industries. From 1999 until 2001 Mr. Rigas was in charge of Piraeus Bank's Shipping Investment Banking division. Prior to that (1993-1999) he was Vice President of Energy & Project Finance at Chase Manhattan Bank in London where he arranged oil & gas financings in excess of $5 billion. His career started at Arthur Andersen in 1991 as a consultant in the energy sector.

Mr. Rigas is the Chairman of the Board of Tyres Herco S.A. a tire recycling company and MAVIN S.A. a company recycling agricultural and brewery by-products in Greece.

He holds a Degree in Mining & Metallurgical Engineering from the National Technical University of Athens and a MSc/ DIC Degree in Petroleum Engineering from Imperial College in London.