
With experience in non-contentious work, BAHR is well-positioned to advise clients within the energy and renewables space. The practice is co-led by Sam E. Harris, who typically acts in contentious construction mandates, and Halvor Mathisen, who is noted for his work on litigation and mediation in construction disputes. Eirik Høiby oversees complex construction and development projects in the oil and gas industry. Jan Einar Barbo left the firm in 2025.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- ‘Strong team who understand the ins and outs of onshore construction. Adaptable and available with a key focus on strong individuals.’
- ‘Eirik Høiby was an excellent centre point, with a wealth of experience and a pragmatic approach backed by experience.’
- 'They are strong lawyers.'
- ‘Morten P. Smordal excels more any other lawyer I have met - would I have to choose one lawyer with whom I would have to run my operation until kingdom come, it would be Morten.'
Key clients
- Aker Solutions ASA
- SLB Capturi Norway AS
- Aker Horizons
- Ventyr SN II AS
- Hafslund Oslo Celsio AS
- City of Oslo, department of water and sewage
- AVA Eiendom AS
Work highlights
Assisting the City of Oslo’s Department of Water and Sewage on the construction of a new raw water tunnel from Holsfjorden to Huseby.
Advising Ventyr SN II AS in relation to the construction of the Sørlige Nordsjø II project, a complete, large-scale offshore windfarm.
Assisting Hafslund Oslo Celsio AS with the NOK 5 billion+ planned development of a carbon capture plant as an addition to its existing waste-to-energy treatment plant in Oslo.
Lawyers
Leading Partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Sam E. Harris; Halvor Mathisen
Other key lawyers
Eirik Høiby; Inglin Sognnæs; Morten P. Smørdal
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