Department profile
Arntzen Grette

Energy: Oil & Gas

Global Guide 2026 : Norway


Arntzen Grette

Rankings

About

Provided by Arntzen Grette

Arntzen Grette is one of Norway’s most established oil and gas law practices, advising the industry for more than five decades. We support clients across the entire value chain, from exploration, field development and major offshore projects to operations, commercial strategy and high-value transactions. Our expertise includes complex commercial contracts, E&P M&A and licence transfers, petroleum tax, project development, regulatory compliance and technically demanding disputes.

We have deep experience with offshore construction, subsea infrastructure, drilling and production facilities, as well as the regulatory framework that governs the Norwegian Continental Shelf. The team is also at the forefront of energy-transition developments, advising on offshore electrification, CCS projects, hydrogen infrastructure and cross-sector regulatory issues where oil and gas and power markets intersect.

With a full-service, multidisciplinary approach, we handle assignments requiring corporate, tax, finance, regulatory and dispute resolution capabilities. Our long-standing industry insight enables us to support clients on strategically important, technically complex and cross-border matters. Arntzen Grette is a trusted adviser for companies navigating both traditional petroleum operations and the accelerating transition toward low-carbon energy solutions.

Chambers Review

Provided by Chambers

Energy: Oil & Gas - Norway

Band 3

Band 3


What the Team is Known For

Arntzen Grette handles a broad range of domestic and cross-border oil and gas mandates, serving clients through its offices in Oslo and Stavanger. The lawyers advise on a whole host of commercial and regulatory mandates connected to oil exploration and field development, including joint ventures and construction contracts. The law firm also assists with M&A transactions, financing matters and dispute resolution services.

Work Highlights

Provided by Chambers

  • Arntzen Grette advised Lime Petroleum Holding AS on the corporate restructuring and international expansion of its group structure.

Strengths

Provided by Chambers

  • Arntzen Grette's lawyers are solution-oriented, with a practical approach.

    Energy: Oil & Gas respondentGlobal
  • The Arntzen Grette team always looks out for us.

    Energy: Oil & Gas respondentGlobal
  • Arntzen Grette has a deep knowledge of the E&P industry, especially on the Norwegian shelf. The team can explain complicated matters in a way that is easy for non-lawyers to understand.

    Energy: Oil & Gas respondentGlobal
  • Arntzen Grette's ability to anticipate risks, structure complex transactions and negotiate effectively under tight timelines adds real value.

    Energy: Oil & Gas respondentGlobal
  • Arntzen Grette offers a broad range of competencies, combined with depth of knowledge and extensive oil industry experience.

    Energy: Oil & Gas respondentGlobal

Notable Practitioners

Provided by Chambers

  • Band 3Karl Erik Navestad
    Band 3Karl Erik Navestad

    Karl Erik Navestad

    Karl Erik Navestad advises E&P companies on a range of commercial agreements and regulatory topics, as well as disputes.

    • Karl Erik Navestad has very good analytical skills.

      Energy: Oil & Gas respondentGlobal
    • Karl Erik Navestad is very precise and into every detail, which gives you confidence as a client.

      Energy: Oil & Gas respondentGlobal
  • Band 3Rune Omdahl
    Band 3Rune Omdahl

    Rune Omdahl

    Rune Omdahl's broad practice covers corporate advisory and the acquisition of field interests as well as disputes in the energy sector.

    • Rune Omdahl is able to navigate cross-jurisdictional challenges and complex issues.

      Energy: Oil & Gas respondentGlobal
    • Rune is a highly skilled and insightful lawyer with exceptional expertise in complex negotiations. He combines deep legal knowledge with strategic commercial awareness, making him a trusted adviser.

      Energy: Oil & Gas respondentGlobal
    • Rune Omdahl has very impressive and well-rounded knowledge.

      Energy: Oil & Gas respondentGlobal
    • He is commercially strong.

      Energy: Oil & Gas respondentGlobal
    • Rune Omdahl's understanding of very complicated commercial matters stands out.

      Energy: Oil & Gas respondentGlobal
  • Band 4Anders Rødland
    Band 4Anders Rødland

    Anders Rødland

    The Stavanger-based Anders Rødland advises E&P and blue-chip companies on field developments and M&A transactions, as well as the divestment of oil and gas assets.

    • Anders provides an excellent service and a solution-oriented approach.

      Energy: Oil & Gas respondentGlobal
    • Anders Rødland's services are very dedicated.

      Energy: Oil & Gas respondentGlobal
    • Anders Rødland has the ability to pin down the key issues and a strong commercial understanding. He is also very good at contract drafting and negotiations.

      Energy: Oil & Gas respondentGlobal
    • Anders Rødland is efficient and has the ability to identify what is important.

      Energy: Oil & Gas respondentGlobal

Ranked Individuals at Arntzen Grette (3)

Norway

Members

Provided by Arntzen Grette

Arntzen Grette has rankings in the following guides

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