||Born on 16th June 1951 in Semarang, Central Java, Purnomo completed his undergraduate studies at the School of Engineering at the Bandung Institute of Technology. He then pursued his masters in 1986 and doctorate in 1988 in mineral and natural resources at the Colorado School of Mines, the United States. Purnomo was deputy governor of the National Resilience Institute (Lemhannas) before former president Megawati Soekarnoputri appointed him as the energy and mineral resources minister. A father of three, he was advisor to the energy minister from 1993 to 1998, and a founder of the Indonesian Institute for Energy Economics. Currently, he is also serving as president of the Vienna-based Organisation of Petroleum Exporting Countries (OPEC).