TY - SER AU - Berns,Maurice AU - Hartung,John AU - Nordahl,Hege AU - Whittaker,Philip TI - Big Oil looks at slimmer model PY - 2015/// N1 - The oil majors could see cost savings of more than 20% if they ‘reboot’ the sector’s traditional business model, according to The Boston Consulting Group’s (BCG) Maurice Berns, John Hartung, Hege Nordahl and Philip Whittaker and Morgan Stanley's Martjn Rats and Haythem Rashed ER -