Mimi K. Berdal has a Master of Law degree. She has worked for the law firm of Arntzen de Besche (formerly Arntzen, Underland & Co) since 1988 and has been a partner since 1996. From 1988 to 1991 she was seconded as an in-house lawyer to the oil company Total. In late 2005, she left Arntzen de Besche to open an independent legal practice. She works primarily with company law, transactions and contracts, as well as petroleum law. She has held a number of positions in the Norwegian Bar Association and on various Boards of Directors.