Changes to 79/879/EEC: Council Decision of 22 October 1979 amending Decision 77/186/EEC on the exporting of crude oil and petroleum products from one Member State to another in the event of supply difficulties
EU Decision 1979/879
No changes to 79/879/EEC: Council Decision of 22 October 1979 amending Decision 77/186/EEC on the exporting of crude oil and petroleum products from one Member State to another in the event of supply difficulties are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.