Since 2002, I had spent more than 10 years in oil & gas marketing activities in BPMIGAS/SKKMIGAS, particularly in the area: oil & gas allocation strategy, particularly gas for domestic market, and commercial term of conditions of oil and gas sales contracts, including LNG for export. Before joining BPMIGAS, I had long experience ( 8 years) in OPEC Secretariat, Vienna, working as an analyst for Alternative Sources of Energy, looking at the impacts of non-oil energy and energy technology development toward global oil demand. Within the period 1980-1993: working for Indonesian research institute (BPPT, Agency for Assessment and Application of Technology) as a Team leader and research analyst for Energy Studies, including Energy Supply Strategies, Energy Modelling, Energy Technology and Environment, and other related energy issues.