Changes to 80/374/EEC: Commission Decision of 31 March 1980 extending the period of application of the system of authorization for trade in crude oil and/or petroleum products between France and other Member States provided for by Decision 79/126/EEC (Only the French text is authentic)
EU Decision 1980/374
No changes to 80/374/EEC: Commission Decision of 31 March 1980 extending the period of application of the system of authorization for trade in crude oil and/or petroleum products between France and other Member States provided for by Decision 79/126/EEC (Only the French text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.