The delegates of the conference were representatives of the leadership of Russian and corporations (Gazprom, Lukoil, Rosatom, Rosgeologiya, Vnesheconombank, Morneftegazproekt, Murmanshelf, Russian Helicopters, etc.), as well as foreign auditors (Deloitte, member of the world Big Four) and consulting centers (Norwegian Rystad Energy and others.).[88][unreliable source?]