Acasă » Oil&Gas » Exploration & production » Indonesia returns as OPEC member in December, after a six-year breakIndonesia returns as OPEC member in December, after a six-year break9 September 2015Exploration & productionenergynomicsTags:OPEC Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website previousOn Oilman Day, ROPEPCA request state aid for the oil and gas industrynextEU and US give go-ahead to GE, Alstom deal