The energy and environmental law practice at BAHR has seen an increased stream of work across project development, M&A, and regulatory matters, as well as growth of activity in the energy transition space. Jon Christian Thaulow co-heads the energy & environment department and chiefly concentrates on transaction support and project development. Co-head Stig Klausen Englehart maintains a varied stream of work in the energy space, spanning from regulatory guidance to project development. Rune Svoren is an industry veteran in transactional electricity mandates, whereas Per Aksel Hammer Krog has been active on projects and M&A relating to the energy transition. Inglin Sognnæs adds experience in the renewable energy space, advising on the structuring of large-scale projects. Thomas Svensen leads the oil and gas sub-group with broad activity on field development projects, contracts, and regulatory matters. Jan B. Jansen is a seasoned advisor to oil and energy clients on tax, litigation, and transactional mandates. Trond Lingaas is a key name for oil and gas M&A deals. Peter Aall Simonsen joined the firm in October 2025.

Legal 500 Editorial commentary

Accolades

Client satisfaction: Lawyer & team quality

Client satisfaction: Sector knowledge

Testimonials

Collated independently by Legal 500 research team.

‘Thomas Svendsen - direct advice, identifies solutions in complex situations, trusted advisor.’
‘Sound and timely advice, very efficient, focused on helping the client and getting things across the finishing line.’
‘Thomas Svenson, Stig Engelhart, Trond Lingaas are all very high quality - Thomas in particular for his mastery of both disputes and transactions, Stig for his M&A and negotiation skills, Trond for his unrivalled industry technical expertise.’
‘High quality energy team, very responsive, very experienced, very sophisticated.’
‘Highly efficient and knowledgeable with a solid network across the sector. Always solving for clients' needs without adding unnecessary complexity. Availability and proactivity stand out as positive.’
‘I have the opportunity to work with Inglin Sognnæs, who is not only very knowledgeable and experienced in CCUS and renewable energy but is also a hard worker, highly dedicated and professional, providing excellent legal and commercial advice. Highly recommended and excellent in commercial negotiation.’

Key clients

Hafslund AS Statnett Oslo Municipality (Oslo kommune) Vanir Green Industries Aquila Capital Ventyr SN II AS Mainstream Renewable Power Celsio (formerly Fortum Oslo Varme) T1 Energy SLB Capturi Aker Horizons ASA HitecVision Øyfjellet Wind AS Fortecue Future Industries Norsk Vannkraft AS Vårgrønn Aker group and portfolio companies (such as Aker ASA, Aker BP, Aker Solutions, Akastor and Aker Energy) HitecVision and its portfolio companies (such as Sval Energi and Hav Energy) Equinor Neptune Energy Group Shell OMV TOTAL Vår Energi Silex Gas Norway Okea Trudvang CCS ANS (and its owners Sval Energi AS, Storegga, and Neptune Energy) Cape Omega AS (owned by Partners Group)

Work highlights

Advises Aker Horizons on the Narvik green hydrogen project, providing end-to-end support on corporate structuring, regulatory issues, real estate, contracts, and offtake arrangements.

Advises Aquila Capital/ Øyfjellet Wind AS in connection with its acquisition of the Øyfjellet wind farm.

Advising Neptune Energy and its shareholders on the USD 4.9 billion sale of its Norwegian business to Vår Energi and the remainder of the group to Eni.

Lawyers

Hall of Fame: Electricity and renewable energy

The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Rune Svoren

Hall of Fame: Oil and gas

The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.