Changes made by 79/589/EEC: Commission Decision of 15 June 1979 making trade in crude oil and/or petroleum products between Italy and other Member States subject to a system of authorization to be granted automatically by the exporting Member State (Only the Italian text is authentic)
EU Decision 1979/589
No changes made by 79/589/EEC: Commission Decision of 15 June 1979 making trade in crude oil and/or petroleum products between Italy and other Member States subject to a system of authorization to be granted automatically by the exporting Member State (Only the Italian text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.