Aadne M. Haga


About Aadne M. Haga

Aadne heads the firm's Gas Dispute practice. He is an expert on international agreements for transportation, sale and purchase of natural gas and other commodities, and specialises on dispute resolution, in particular international arbitration, within these industries. Aadne has advised and represented commercial and state actors within the petroleum and process industries in contract negotiations and disputes for almost 20 years. The disputes have stemmed from inter alia price reviews, joint ventures, sanctions and mergers and acquisitions. He has experience from institutional, ad-hoc and investment arbitration. Aadne reads and speaks Russian and has particular experience with disputes relating to the former Soviet Union, not least as lead counsel in Ukrainian Naftogaz's multi-billion dollar disputes with Gazprom.

Work experience
  • 2013 -

    Partner, Wikborg Rein, Oslo

  • 2011 - 2012

    Senior Lawyer, Wikborg Rein, Oslo

  • 2009 - 2010

    Senior Associate, Wikborg Rein, Oslo

  • 2004 - 2008

    Associate, Wikborg Rein

  • 2004

    Trainee, Wikborg Rein, Oslo

  • 2003

    Trainee, Rana municipal court

  • 1999

    Peacekeeping service, Norwegian Armed Forces

  • 1996 - 1997

    Executive officer, Royal Norwegian Consulate General, Murmansk, Russia

  • 2009

    Practising certificate

  • 2004

    Cand.jur., University of Bergen

  • 1998

    Single-term course, Serbo-Croatian, University of Oslo

  • 1996

    Intermediate subject, Russian, University of Bergen

  • 1994 - 1995

    Military Russian language course, Norwegian Armed Forces

Selected projects
  • Extensive experience with gas disputes, also with competition law aspects, in particular price reviews, under long term gas sales agreements, but also concerning gas transportation services and exploration and production joint ventures.

  • Extensive experience with international arbitration, inter alia pursuant to the Rules of the ICC International Court of Arbitration and the Rules of the Arbitration Institute of the Stockholm Chamber of Commerce

  • Advice to gas buyers in negotiations of new gas purchase agreements and regarding inter alia volume and operational issues under current agreements

  • Advice on the legal framework for physical and financial energy trading in Norway

  • Advice on the legal framework for energy infrastructure in Norway, hereunder third party access and interconnectors

  • Advice and support in negotiations of long-term purchase agreements for raw materials to fertilizer and petrochemical industry

  • 2020

    "Norway", Country chapter in "The European Arbitration Review 2021" (with Ola Nisja, Gaute Gjelsten and Kaare Andreas Shetelig)

  • 2015

    "Arbitration Act § 13, second paragraph. Repeated appointments and arbitrators' impartiality in international relations" in Borgar H. Berg and Ola Ø. Nisja (red.), "Avtalt prosess - Voldgift i praksis" ("Agreed Process - Arbitration in practice"), Universitetsforlaget 2015

  • 2010

    Legal consultant, Norwegian-Russian Legal Dictionary, Aud Anna Senje, Unipub 2010

  • 2009

    "Recent developments in hydropower and gas", The 2009 guide to Energy and project finance, a supplement to International Financial Law Review

Honor awards
  • 2022

    Ranked Highly Regarded, IFLR 1000

  • 2022


  • 20192

    Legal achievement of the year 2019, Finansavisen