The EU Court of Justice states that the Commission is not required to set out in its decision exhaustively all the evidence available, it is sufficient if it refers to the conclusive evidence (Petrofina)

Case T-2/89 Petrofina SA v Commission of the European Communities* 1. The decision addressed by the Commission to undertakings or associations of undertakings pursuant to Article 85(1) of the Treaty may not contain new objections in addition to those contained in the statement of objections nor fresh evidence in addition to that mentioned in those statements of objections or appended to them. Although that decision must specify the evidence on which the Commission's case hangs, it is not necessary for it to enumerate all the evidence available but it may refer to it in general terms. 2. The preliminary nature of the minutes of the hearing submitted to the Advisory Committee on Restrictive Practices and Dominant