1. Member States or any competent authority they designate, including the regulatory authorities referred to in Article 39(1) and the dispute settlement authorities referred to in Article 34(3), shall, insofar as necessary to carry out their functions, have right of access to the accounts of natural gas undertakings as set out in Article 31.
2. Member States and any designated competent authority, including the regulatory authorities referred to in Article 39(1) and the dispute settlement authorities, shall preserve the confiden? tiality of commercially sensitive information. Member States may provide for the disclosure of such information where this is nec? essary in order for the competent authorities to carry out their functions.
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