LAWYER PROFILE
Jan B Jansen

Jan B Jansen

Global 2026

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Ranked in 2 practice areas

Contributions and articles

1 Global Practice Guides

About

Provided by BAHR

Practice Areas

Tax, Oil & Gas, Dispute Resolution

Career

Jan B. Jansen is a prominent and respected lawyer, who specializes in dispute resolution, tax and insurance law, as well as the oil and energy sector.

Jan has worked closely with oil and energy since 1986 and has acted for his clients in many capacities: such as advisor on regulatory matters and transactions, and as counsel in litigation. His clients include many of the largest companies active on the Norwegian Continental Shelf, as well as the Norwegian State. Jan has a thorough understanding of the oil and gas business and the challenges facing the actors involved. He has represented most of the large E&P companies in tax litigation and has successfully pleaded many of the most notable tax cases for the industry.

Additionally, Jan has represented a number of law firms in professional indemnity claim cases. He also assists on insurance matters, where he advises insurance companies on policy issues and claims handling, and represents them in insurance and reinsurance disputes.

Chambers Review

Provided by Chambers

Chambers Global Guide

Dispute Resolution - Norway

Band 1
Band 1

Individual Editorial
Jan Jansen is a leading litigator who garners acclaim for his expertise in contentious tax issues, often connected to the oil and gas sector. He also possesses experience in insurance disputes relating to loss of income.

Strengths

Provided by Chambers

  • Jan Jansen has in-depth knowledge of oil and gas.

    Energy: Oil & GasChambers Global Guide
  • Jan Jansen is highly intelligent and works hard for his clients.

    Energy: Oil & GasChambers Global Guide
  • Jan is a pleasure to work with and is good at coming up with new angles and perspectives.

    Dispute ResolutionChambers Global Guide
  • Jan Jansen knows his business very well and is extremely skilled.

    Dispute ResolutionChambers Global Guide

Ranked Individuals at BAHR (38)

Denmark

Norway

All Contributions (1)

Provided by BAHR

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