Aadne M Haga is a partner at Wikborg Rein’s Oslo office and heads the firm’s petroleum and energy practice and its gas dispute team. He has practised international arbitration in the energy industry since joining Wikborg Rein in 2004, and he has particularly extensive experience with Stockholm Chamber of Commerce and International Chamber of Commerce arbitration. A main focus of his practice has been assistance to buyers of natural gas, and he has successfully advised and represented a number of gas buyers in international negotiations and international arbitration, including Naftogaz of Ukraine in its multibillion-dollar disputes with Gazprom. Haga has also advised on energy projects and transactions in various jurisdictions, in particular for the fertiliser industry, but also for the upstream oil and gas industry. He speaks German and Russian in addition to English and his native Norwegian.