Oil and gas in Norway


BAHR is a key name in the oil and energy sector, with noted expertise in financing and transactional matters. Petroleum tax issues are another core strength of the practice; Jan Jansen is a highly regarded practitioner in this space, acting as counsel to a solid client base of prominent industry names including ExxonMobil and Shell. Managing partner and department co-head Thomas K. Svensen is regularly instructed in oil and gas-related dispute resolution, project development matters and regulatory work. Jon Christian Thaulow, who shares leadership of the practice with Svensen, has extensive experience in transactions and restructurings. Specialist partner Trond Lingaas is another key contact, and Eirik Høiby joined from Advokatfirmaet Selmer AS in 2020.

Practice head(s):

Thomas K. Svensen; Jon Christian Thaulow

Other key lawyers:

Jan Jansen; Trond Lingaas; Eirik Høiby


‘The team is very easy to interact with, friendly, highly approachable and professional. Trond Lingaas, who we work with the most, has all the qualities mentioned and is highly appreciated by us.’

‘Hands-on follow-up with high-quality holistic advice.’

‘High quality adviser that works efficiently on a broad range of issues.’

Key clients

Aker BP

Aker Energy AS






Vår Energi


Sval Energi



Aker Group Companies (Aker, Aker Solutions, Akastor)




Kvale Advokatfirma DA

Kvale Advokatfirma DA‘s group has ‘solid knowledge of oil and gas, including detailed knowledge of regulations.’ Key areas of instruction for the department include high-value transactional mandates, contractual issues and a broad range of litigation proceedings. Jens Brede ‘has very deep knowledge about many aspects of the oil and gas business’; he shares leadership of the practice with Yngve Bustnesli, who stands out for his ‘in-depth understanding of the oil and gas industry and its regulatory regime’. Gry Bratvold is a name to note for cross-border work.

Practice head(s):

Jens Brede; Yngve Bustnesli

Other key lawyers:

Gry Bratvold


‘Jens Brede has the ability to analyse a case picking out the important aspects and then implement accordingly. High credibility before tribunals.’

‘Yngve Bustnesli – highly trusted adviser. High professional standards, a distinct ability at working effectively though complex situations and putting advice in the right context and framework for the situation. Moreover, his direct and open communication style combined with a calm and analytical approach makes him a highly appreciated support in resolving complex matters.’

‘Yngve Bustnesli has particularly impressed me. Always available, always dedicated, very loyal.’

‘Solid knowledge of oil and gas, including detailed knowledge of regulations.’

Key clients

Maersk Drilling


Wintershall Norge



BW Offshore

Kerogen Capital

Kongsberg Maritime

M Vest Energy

Solution Seeker

EagleBurgmann Norway


Work highlights

  • Advised Danish drilling rig operator Maersk Drilling on the $373m sale of the rig Maersk Inspirer to investment company Havila Sirius.
  • Assisted BW Offshore with drafting and negotiating contracts concerning a bid for a Pre-FEED contract for a major field development.

Advokatfirmaet Schjødt

As ‘a real powerhouse oil and gas practice with a huge breadth of experience in all related disciplines,’ Advokatfirmaet Schjødt is ‘widely regarded as a market leader in Norway‘. Jointly led by Sverre Bjelland and Preben Willoch from Stavanger and Oslo respectively, the team stands out for its ‘unique combination of experience, in-depth knowledge, and service-minded attitude‘, and continues to represent prominent oil and E&P companies in high-profile disputes and transactional mandates. Other key names include the highly regarded Christian Fredrik Michelet, Torkjel Grøndalen, who is sought out for his regulatory, contractual and M&A expertise, and Peter Hiorth, who specialises in oil taxation. Amund Bjøranger Tørum left the firm in May 2021.

Practice head(s):

Sverre Bjelland; Preben Willoch

Other key lawyers:

Torkjel Grøndalen; Peter Hiorth; Christian Fredrik Michelet


‘This firm is our go-to firm in Norway and we have always been extremely impressed with them. Clear, practical advice and deep industry knowledge.’

‘Preben Willoch is the star performer and we have tremendous confidence in him to deliver.’

‘The service is always first class. Up to date with the law and latest practice. Advice from the team has been impeccable and Schjødt have been really supportive. Great to work with.’

Peter Hiorth: an eminent figure in the oil and gas sector, with huge experience advising multinational energy companies. Great lawyer with a fantastic reputation. Easy to work with.’

‘Excellent response times and commercial mindset.’

‘Able to leverage unique industry experience to provide fit for purpose legal advice.’

‘Speedy and fit for purpose advice. I have worked especially with Sverre Bjelland and highly recommend him.’

Key clients

Lundin Norway AS

Vår Energi AS

Repsol Norge AS

Total E&P Norge AS

PGNiG Upstream Norway AS

Petoro AS

Chrysaor Norge AS

Wintershall Dea Norge AS

Spirit Energy Norway AS

Neptune Energy Norway AS

Work highlights

  • Represented Repsol Norge AS in Maersk’s $373m sale and leaseback of a jack-up rig to Havila, which will then sell the rig to the Yme field licence, operated by Repsol.
  • Providing ongoing assistance to Total E&P Norge AS on the development of the “Northern Lights” CCS project.
  • Advised PGNiG Upstream Norway AS on its acquisition of Norske Shell’s interests in the Valemon and Kvitebjørn producing fields in the North Sea.

Advokatfirmaet Simonsen Vogt Wiig

At Advokatfirmaet Simonsen Vogt Wiig, the team provides ongoing assistance to Gassnova SF on a range of Norwegian and EU regulations concerning Norwegian environmental legislation, environmental and state aid guidelines, CCS and contract/EPC law; petroleum law expert Frode Berntsen is lead partner on this matter. Practice co-head Bjorn-Erik Leerberg is ‘very professional and innovative‘, and Stavanger-based co-head Gunnar Espeland specialises in decommissioning matters, offshore and onshore construction matters, and oil and gas procurement work.

Practice head(s):

Bjørn-Erik Leerberg; Gunnar Espeland

Other key lawyers:

Frode Berntsen


‘The support we received from Bjørn-Erik Leerberg was great and very professional and innovative.’

Key clients

Neptune Energy Norge AS

Eni S.p.A / Eni International B.V

Vår Energi AS (previously Eni Norge AS)

Eni Insurance DAC

Saudi Aramco Development Company

Aramco Overseas Company B.V./ Saudi Aramco Energy Ventures LLC

Gassco AS

Gassnova SF

Capricorn Norge AS

ONE-Dyas Norge AS

OMV (Norge) AS

Norwegian Petroleum Directorate

Faroe Petroleum Norge AS

Petroleum Safety Authority Norway

Instituto Nacional de Petroleo, Mozambique

Ministry of Energy and Mineral Development, Petroleum Exploration and Production Department, Petroleum Authority, Uganda

Ministry of Mineral Resources and Energy, Mozambique

Horisont Energi AS

Ministry of Energy and Petroleum Upstream Regulatory Authority, Tanzania

Zanzibar Petroleum Regulatory Authority, Tanzania

National Environment Management Council, Tanzania

Zanzibar Environmental Management Authority, Tanzania

Work highlights

  • Providing ongoing advice to Saudi Aramco Development Company, Aramco Overseas Company B.V. and Saudi Aramco Energy Ventures LLC on M&A/corporate issues regarding the purchase of shares in several Norwegian oil technology companies.
  • Assisting the PSA with its circumpolar study of Health, Safety and Environment (HSE) regulatory practices concerning offshore petroleum activities.

Advokatfirmaet Thommessen AS

The oil and gas team at Advokatfirmaet Thommessen AS is jointly led by M&A expert Christian Hals and Pål Lieungh, who has established expertise in assisting Norwegian companies with international projects. The group is well versed in handling high-profile litigation, complex development projects, and M&A mandates. In the Stavanger office, Audun Stornes is sought out for his expertise in contentious work arising from upstream oil and gas matters; Thomas Abrahamsen assists E&P clients with a broad range of corporate issues; Jone Stakkestad‘s workload includes procurement and transactional matters; and June Snemyr is a key name for regulatory matters.

Practice head(s):

Christian Hals; Pål Lieungh

Other key lawyers:

Audun Stornes; Thomas Abrahamsen; Jone Stakkestad; June Snemyr


‘The team is quick with responses, always available and very dedicated.’

‘Great team that is knowledgeable, practical and nice to deal with. Good attention to detail, drafting, analysis and strategy. Covering the full range of oil and gas related topics. Able to deal with all aspects. Real powerhouse.’

Key clients

BP International

Kongsberg Gruppen




Island Offshore

Energean Oil & Gas

PGNiG Upstream Norway

Odfjell Drilling


Shelf Drilling

Vår Energi

BW Offshore

RAK Petroleum


MOL Norge


Myklebust Verft

TTC Norge

Veolia Environmental


PGNiG Supply & Trading

A/S Nymo

BW Energy

Longboat Energy

LOTOS Exploration And Production Norge

Wintershall DEA Norge


Suncor Energy Norge AS

Ægir Energi AS

Hav Energy AS

Sval Energy AS



Work highlights

  • Advised Longboat Energy on a high-value E&P transaction, involving farm-in agreements related to a drilling programme on the Norwegian continental shelf.
  • Assisted Energean Oil & Gas with its acquisition of Edison Exploration & Production.
  • Represented Westcon Yards in litigation against Prosafe Rigs concerning the conversion of a tender support vessel.


Wiersholm‘s ‘efficient and highly knowledgeable‘ team has ‘broad and in-depth knowledge within oil and gas and the wider energy sector’. The group undertakes the full range of oil and gas work, and is well known for handling instructions from a client base that includes Equinor, ConocoPhillips Skandinavia, and Chrysaor. Practice head Sondre Dyrland is ‘very knowledgeable and has exceptional analytic skills‘. Kristian Martin Lind has ‘a hands-on, practical and efficient approach to M&A work within the oil and gas industry‘.

Practice head(s):

Sondre Dyrland

Other key lawyers:

Kristian Martin Lind; Thomas Naaslund


‘Sondre Dyrland: excellent performance, excellent business acumen, provides excellent and balanced advice, very service minded.’

‘They have lawyers with deep knowledge about the business.’

‘Sondre Dyrland has vast experience within all areas of the business, which enables him to give high quality advice very efficiently.’

‘Excellent in-depth knowledge of the energy sector and the legal framework. Efficient.’

‘Sondre Dyrland – highly skilled and easy to work with.’

‘Thomas Naalsund is an excellent litigator.’

Key clients

Equinor ASA

ConocoPhillips Skandinavia AS

Total E&P Norge AS/Total S.A.

Lundin Norway AS

Spirit Energy Norge AS

Chrysaor Norge AS

Norwegian Ministry of Petroleum and Energy (MPE)

The Norwegian Ministry of Trade, Industry and Fisheries


CapeOmega AS


Bangchak Corporation PCL

Concedo ASA

North Sea Infrastructure AS / PKA AIP A/S

CHC Helikopter Service AS

ABB Group Ltd


Danske Bank A/S

BNP Paribas

Skandinaviska Enskilda Banken AB

Idemitsu Petroleum Norge AS

Kværner ASA

Work highlights

  • Advised InfraVia Capital Partners and Molgas Energy Holding on the acquisition of a 100% stake in LNG company Gasnor from A/S Norske Shell.
  • Providing ongoing assistance as sole counsel to the MPE regarding its full-scale carbon capture storage project.
  • Advised Kværner ASA on its merger with Aker Solutions.

Arntzen de Besche

Led by Karl Erik Navestad from the Oslo office, Arntzen de Besche‘s team garners praise for its ‘dedication and knowledge‘ and undertakes the whole range of oil and gas matters, with particular expertise in advising construction and contractor-side clients on offshore-related mandates. Rune Omdahl is active in M&A, licensing, financing and production sharing agreements (PSA), with a key focus on upstream matters. The ‘reliableAnders Rødland is a key name in Stavanger for high-value disputes in the oil and gas sector.

Practice head(s):

Karl Erik Navestad

Other key lawyers:

Anders Rødland; Rune Omdahl


‘Anders Rødland is an exceptional partner.’

‘Solid and reliable work.’

‘Combination of exceptional good understanding of the legal framework with a commercial mindset and negotiation skills.’

‘Anders Rødland has an excellent commercial understanding, and provided good support during negotiations when things got complex and tough. He understands the game and is excellent in handling difficult people.’

‘Hard working and delivering quality on time.’

Key clients


Vår Energi AS

Petoro AS

Altera Infrastructure


Edge Petroleum

Pandion Energy

Edison S.p.A.

Lime Petroleum

MOL Norge

Work highlights

  • Acted for Petoro as lead negotiator concerning parts of the Johan Sverdrup oil field development project on the Norwegian continental shelf.
  • Advised Edison International on all aspects of its $300m sale of Edison Norge.
  • Assisted Lime Petroleum with an agreement to acquire Repsol Norge’s interests – a 33.84% stake worth NOK356m – in the Brage oil field on the Norwegian continental shelf.

CMS Kluge

CMS Kluge‘s ‘extremely flexible‘ and ‘highly responsive‘ team stands out for its ‘excellent knowledge of the E&P industry and associated legislation‘. The department continues to be kept busy advising oil and gas companies on green shift matters, alongside a steady workflow of contentious issues, transactions and contractual mandates. The practice is jointly led by E&P transactional expert Olav Hasaas in Oslo and Stavanger-based Siv Madland, who is active in M&A matters. Also in Stavanger, Camilla Grytten is noted for her expertise in regulatory work, and Oslo-based Asle Bjelland is a key name for dispute resolution.

Practice head(s):

Olav Hasaas; Siv Madland

Other key lawyers:

Camilla Grytten; Asle Bjelland


‘CMS Kluge provides hands-on advice and is very knowledgeable, not only from a legal and contractual perspective but also regarding technical and commercial aspects. Since several of the lawyers have key in-house experience, they are good at adapting and finding good solutions. They are quick in their response time and get the work done, leaving the customer feeling in control and reassured.’

‘The individual lawyers have a good understanding of complex matters, also bringing to the table other aspects than pure legal issues. They are good to discuss with and also have the ability to turn around quickly if needed.’

‘They deliver high quality.’

‘Flexible and highly competent team.’

‘Very short response times, and highly competent.’

‘Very responsive and knowledgeable, which allows you to make quick and informed decisions.’

‘Camilla Grytten has impressed with her knowledge, responsiveness, broader understanding of E&P commercial issues, team work and influencing skills.’

Key clients

Wintershall Dea Norge AS


LOTOS Exploration & Production AS

OMV Norge AS

Total E&P Norge AS

Pandion Energy AS

Wellesley Petroleum AS

Gassnova SF

Kongsberg Gruppen ASA

Fieldmade DI AS / Fieldmade AS

AF Aeronmollier AS

GMC Maritime AS

Jansen og Willumsen Services AS

Scandinavian Fittings and Flanges AS

Servtech AS

Aarbakke AS

Head Energy AS

Innovar Solutions AS

Kaefer Energy AS

Neodrill AS

Cegal AS

Odfjell Drilling AS

Work highlights

  • Advising Gassnova SF on the Longship carbon capture and storage (CCS) project.
  • Acting as longstanding counsel to oil and gas producer Wintershall Dea on a range of matters, including the client’s portfolio of production licences.
  • Advised Norwegian start-up company Fieldmade DI on negotiating a funding agreement with Equinor, as well as a connected collaboration agreement with Equinor and Siemens Energy, in order to develop a digital inventory system to enable 3D printing of spare parts for the oil industry on site.

Advokatfirmaet Selmer AS

Advokatfirmaet Selmer AS‘ oil and gas team is ‘very competent and experienced with very good knowledge of their client’s business, and provide good and proactive solutions.’ Led by Thomas G. Michelet, the group assists a client base which includes prominent industry leaders and investment banks with high-value acquisitions, project development, financing matters and litigation, to name a few areas of expertise. Øyvind Olimstad has a solid track record in advising on transactional mandates and regulatory matters, while Nicolai Myren is sought out for his expertise in offshore issues. Eirik Høiby moved to BAHR in 2020.

Practice head(s):

Thomas G. Michelet

Other key lawyers:

Øyvind Olimstad; Nicolai Myren


‘Sound business understanding.’

‘The individuals are very service-minded, friendly, and easy to communicate with. They are solution oriented and are capable of managing very complex and comprehensive matters with short deadlines. I would like to mention Nicolai Myren as a specific stand – out partner.’

‘Selmer’s team within Oil and Gas are very competent and experienced. They have very good knowledge of their client’s business, are service minded and provide good and proactive solutions.’

‘The high level law competence paired with sound business understanding is the value of the team, and then their service level.’

‘Selmer AS represents a good mix and seems to handle anything related to the Oil & Gas segment very well. Always take new positive initiatives, have new ideas, and are very accurate.’

Key clients

Yantai CIMC Raffles Offshore


COSL (China Oilfield Services Limited)


IKM Gruppen




Pandion Energy

Golden Energy Offshore

Petrolia NOCO

Havfram (formerly Ocean Installer)


Rosenberg Worley


Arctic Economic Council Secretariat

Norsar Foundation

Wikborg Rein

At Wikborg Rein, the petroleum and energy team is assisting Ukrainian state-owned gas company Naftogaz with the implementation of a settlement and related awards, after acting as lead counsel for the client in a prominent, successful, multi-jurisdictional international arbitration; Aadne Haga, who heads up the gas disputes practice, and Dag Mjaaland, who is noted for his expertise in international gas disputes, jointly led on this matter. Head of the petroleum and energy team Cathrine Hetland has over a decade’s experience within the oil and gas sector.

Practice head(s):

Cathrine Hetland

Other key lawyers:

Aadne Haga; Dag Mjaaland


‘Great industry insights and very fast and efficient – especially in dispute management. Sound and practical legal advice without making things overly complex.’

‘Second-to-none energy industry knowledge, and a rare gift to combine this knowledge with highly sophisticated legal advice.’

Key clients




Ukrgazvydobuvannya (UGV)

Work highlights

  • Acted as local counsel to DNB Bank ASA (with the client acting as documentation agent) concerning the refinancing of Lundin Energy through a $5bn revolving credit facility and a $1bn accordion option.
  • Advising power company BKK AS, as well as a potential joint venture entity to be established by BKK AS, Equinor ASA and Air Liquide AS, on a project for establishing a new value chain for liquid hydrogen based on the western coast in Norway.

Advokatfirmaet Haavind AS

Advokatfirmaet Haavind AS‘ oil and offshore practice is widely recognised for handling contractual matters, transactional mandates and contentious work for an established client base of major contractors. M&A expert Bård Sandstad heads up the transactional side of the practice, while Christopher L. Sveen leads the offshore and construction group; Sveen also brings expertise in restructurings. Mikal Brøndmo is the key name for arbitration and litigation proceedings.

Other key lawyers:

Mikal Brøndmo


‘Bård Sandstad: broad and in-depth knowledge of the oil & gas sector, excellent business acumen, provides balanced and excellent advice.’

‘Good overview, and practical approach. Quick responses. Professional approach leaving us with a feeling of security in getting the best advice we could for our particular case.’

‘Haavind has a unique knowledge of the offshore industry. The combined offshore, oil & gas and energy practice is unique.’

‘Christopher Sveen stands out due to his particular knowledge of and engagement with the commercial and legal drivers of importance for the industry and in particular the traditional offshore industry contractors. It is my experience that he earns trust among the market players that ensures alignment and progress in complex legal matters.’

Key clients

Norsk Industri (The Federation of Norwegian Industries), Oil & Gas


Seacrest Capital Group

Fortis Petroleum Corporation

Aker Solutions AS


Heerema Fabrication Group

Barents Naturgass AS

Broadview Energy Solutions B.V.


Marine Aluminium

Work highlights

  • Advised TechnipFMC on its acquisition of the remaining 49% stake in TIOS AS, a former joint venture between the client and Island Offshore Management AS.
  • Advised AqualisBraemar LOC ASA on its acquisition of the LOC Group, an international marine and engineering consulting business.


SANDS‘ practice garners praise for its ‘in-depth knowledge of the Norwegian and Scandinavian upstream and downstream energy market‘, and has an excellent reputation for its strength in handling cross-border mandates. Practice head Lars Berge Andersen is an ‘expert in the oil and gas services segment‘, and managing partner Oddbjørn Slinning regularly handles restructuring, offshore and maritime work. Guy Leonard is a key contact for LNG projects.

Practice head(s):

Lars Berge Andersen

Other key lawyers:

Oddbjørn Slinning; Guy Leonard


‘Lars Berge Andersen – highly competent, pragmatic, problem solver, and very personable. A pleasure to work with.’

‘Superb client service.’

‘Lars Berge Andersen is an outstanding lawyer, who provides fantastic client service. He has a huge breadth of experience in the global energy market, including first-hand knowledge of the Norwegian, US and Far Eastern markets, and he knows everything and everyone. So the teams he builds for a case include leading experts to advise on any aspect of a case. Technical expertise is allied with penetrating strategic thinking, which looks far beyond a case to the future business and market position of the client.’

‘Heavy oil and gas experience.’

‘A very competent and solution oriented team.’

Key clients

Frydenbø Industri


PSW Technology


Helix Oilfield Services


Wellis Mpcd


Bunker Oil

Offshore Simulation Centre


Borealis/Australis Maritime


Jets AS

MHWirth AS

Akastor ASA

DeepOcean Group

Magnora ASA

Umoe Group

Empower Oilfield Solutions (India)

Atlantica Tender Drilling

Managed Pressure Operations (Aker Group)

Global Green Capital AS

Altezza LLP (Kazakhstan)

Sensorlink AS