Pertamina (was Perusahaan Pertambangan Minyak dan Gas Bumi Negara, lit. 'State Oil and Natural Gas Mining Company') is an Indonesian state-owned oil and natural gas corporation based in Jakarta. It was created in August 1968 by the merger of Pertamin (established 1961) and Permina (established 1957). The firm is currently (2013) the second-largest crude oil producer in Indonesia behind the US-based Chevron Pacific Indonesia.In 2013 for the first time, Pertamina ranked no.