Hassan Yassine serves as the Algiers office leader and supports clients wishing to do business in Africa and the Middle East as well as clients from those regions wishing to do business with U.S. companies. He represents public and private companies and host governments in their strategic design, commercial execution, negotiations, contract preparation and legal interpretation.

His experience includes:

  • international oil and gas investments (upstream and downstream)
  • privatizations
  • corporate and tax law
  • project financing for major banks and companies
  • infrastructure projects, including construction and pipelines
  • desalinization projects
  • LNG projects
  • international gas pipe transportation (TRANSMED, MEDGAZ, and GALSI)
  • setting up companies, branches, and liaison offices in Algeria and Libya
  • mergers and acquisitions
  • contract negotiations
  • labor law
  • international arbitration


  • Algerian Law University
  • Algerian Mediation and Arbitration Committee; Member, 2002-present; Chairman
  • Sonatrading (Amsterdam), Past Member, Board of Directors
  • Arab Petroleum Services Company (holding company created by Organization of Arabic Petroleum Countries), Past Member, Board of Directors
  • Algerian - Libyan Geophysical Company, Past Member, Board of Directors
Honors & Awards
  • Highly Regarded, Banking, M&A, IFLR1000, 2023
  • Who's Who Legal: Energy by Law Business Research Limited, 2014, 2016, 2022
  • Chambers Global – The World's Leading Lawyers for Business guideCorporate/Commercial: Foreign Legal Consultants, International Firms, 2007-2018, 2020-2021
  • The Legal 500 Europe, Middle East & Africa, Energy, 2014-2015, 2018
  • ICFM Leading Lawyers 500, InterContinental Finance magazine, 2013
  • The International Who’s Who of Oil & Gas Lawyers, 2007-2011