Studies in Engineering Physics, Institute of Technology, Bandung, Indonesia. With Mobil Oil: 1984-88, based in Indonesia; 1989-92, based in Dallas, US; 1994-96, based in Indonesia. 1998, with CGG Petrosystems, Indonesia; 1998-2002, with Landmark Concurrent Solusi, Indonesia; 2002-06, with Halliburton Indonesia. With Pertamina: 2006-08, Expert Staff to Chief Executive Officer for Upstream; 2008-09, Corporate Senior Vice-President, Upstream; since 2009, current position.