Contact information

Areas of expertise

Renewable energy and infrastructure

PartnerOslo

Rune Tjomsås Andersen

Andersen specialises in tax law and company law and has broad experience in these fields in both the public and private sectors. He has in-depth expertise on petroleum and energy taxes, property tax, general corporate taxation and international tax law. He has worked in the Norwegian Ministry of Finance’s Tax Law Department and has extensive experience of law-making and committee work.

Over the past 25 years, Andersen has assisted national and international clients in a variety of business sectors with matters relating to tax and tax law. He works primarily in the field of transactions, mergers and demergers, acquisitions, tax law, transfer pricing, property tax, contract negotiation, dispute resolution, tax administration law and company law. He also regularly assists in cases relating to VAT and special taxes.

Andersen regularly accepts assignments to represent clients in cases relating to direct and indirect taxation, property tax and company law issues. He has extensive experience of leading the legal side of projects involving major public and private sector entities and which raise complex legal questions relating to direct and indirect taxation, and other professional areas.

Andersen is knowledgeable about the various business sectors and is frequently used as a strategic advisor by his clients. He has considerable experience as a project manager for complex cases which also involve contact with the public authorities and the management of multiple stakeholders.

Andersen has assisted clients in the oil, gas and energy sectors, both nationally and internationally, for many years. He has worked particularly on transactions and acquisitions, contract negotiation and framing, dispute resolution, day-to-day advice and tax-related analyses. He has also frequently assisted in cases relating to licences and framework conditions for the oil and gas industry.

Andersen has for many years assisted major pharmaceutical companies with transactions and acquisitions, company law issues as well as issues relating to direct and indirect taxation. He frequently assists in cases relating to the import of goods to Norway.

Andersen provides day-to-day assistance on company law matters to clients in a variety of business sectors.This also includes advice on reorganisations and in-court advocacy.

For many years, Rune has assisted clients with cases relating to general public administration law and tax administration law.

Rune Tjomsås Andersen is very knowledgeable in the energy and electricity sector. In particular related to tax issues and transactional work.

Client, Legal 500, 2023

News

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28 September 2022

Introduction of source rent taxation for the aquaculture industry

The Norwegian government today introduced a proposal to subject aquaculture to a new source rent taxation regime. Until now, the industry has only formed part of the ordinary corporate income tax regime (in addition to a certain minor special duties).

15 September 2022

Arntzen de Besche gains another top spot in this years International Tax Review

The results from ITR reveals that Arntzen de Besche will advance to Tier 1 within Energy Tax. We also retain the strong placements from last year, where we are ranked in Tier 1 within Shipping and Transactional Tax, and Tier 2 within General Corporate Tax, Indirect Tax and Tax Controversy.

10 August 2022

Arntzen de Besche shortlisted in two categories in this years ITR EMEA Tax Awards

We are delighted to announce that our tax team has been shortlisted for ITR EMEA Tax Awards 2022 in two categories: "Norway Tax Firm of the Year" and "Norway Transfer Pricing Firm of the Year".

8 April 2022

Newsletter – proposed amendments to the petroleum tax regime

The Government announced on a press conference 31 August 2021 that they would propose amendments to the petroleum tax act. The Ministry of Finance then 3 September 2021 issued a public consultation paper where it is proposed that the rules on depreciation and tax-free income in the special tax for petroleum from 2022 should be replaced by immediate expense recognition of investments (cash flow tax – direct tax deduction). The Ministry of Finance emphasized that the proposed amendment is similar to amendment that entered into force for hydroelectric power with effect for investments made from 2021.

24 September 2021

Arntzen de Besche retains top spot in International Tax Review

Arntzen de Besche is ranked in Tier 1 within the Transactional tax and Shipping categories, in the International Tax Review (ITR). We are also ranked in Tier 2 in the categories Energy, General corporate tax, Indirect tax and Controversy tax.

6 September 2021

Newsletter - potential amendments to the petroleum tax regime

The Government announced on a press conference 31 August 2021 that they would propose amendments to the petroleum tax act. The Ministry of Finance has now issued a public consultation paper where it is proposed that the rules on depreciation and tax-free income in the special tax for petroleum from 2022 should be replaced by immediate expense recognition of investments (cash flow tax – direct tax deduction). The Ministry of Finance emphasizes that the proposed amendment is similar to amendment that entered into force for hydroelectric power with effect for investments made from 2021.

9 August 2021

Arntzen de Besche has been shortlisted to the ITR EMEA Tax Awards 2021

We are honoured to have been shortlisted for this year’s “Norway Tax Firm of the Year” and “Norway Transfer Pricing Firm of the Year” at the ITR EMEA Tax Awards.

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What we have done

INPEX Idemitsu Norge has successfully completed the sale of its interests in the Statfjord Øst and Sygna fields to Longboat Japex Norge

On 3 July 2023, INPEX Idemitsu Norge agreed to sell its participating interests in the Statfjord Øst and Sygna fields to Longboat Japex Norge, and on 31 January 2024 the transaction was completed. We are pleased to have served as legal advisors to INPEX Idemitsu Norge in this process.

INPEX Idemitsu Norge is selling production assets to Longboat Energy Norge

We are pleased to have assisted INPEX Idemitusu Norge with the sale of production assets in the Statfjord area to Longboat Energy Norge, for USD 12.75 million.

Arntzen de Besche have assisted Lime Petroleum with the acquisition of a 10 percent working interest in the YME field in Norway

We are proud to have acted as legal advisers to Lime Petroleum in this sale and purchase agreement with KUFPEC Norway AS. Lime Petroleum acquires a 10 percent interest in the producing YME field on the Norwegian North Sea. The total transaction value is USD 68.053 million, and will be paid in cash on completion of the transaction.

Arntzen de Besche have assisted Pandion Energy AS in the merger with Pandion Energy Norge AS (previously ONE-Dyas Norge AS)

We are proud to have acted as legal advisers to Pandion Energy AS in this merger. The merger was approved by the Ministry of Petroleum and Energy on 14 October 2022, and was completed 1 November 2022.

Arntzen de Besche has advised OMV on the sale of the Wisting oil field

OMV, an international integrated oil, gas and chemicals company headquartered in Vienna, Austria, sold its 25 percent stake in the Wisting oil field to Lundin Energy in a transaction that successfully closed before Christmas on 17 December 2021 (see below link to OMV’s press release). We are proud to have acted as OMV’s legal advisor on this transaction.

Arntzen de Besche assisted Lime Petroleum with acquisition in the Brage field

Arntzen de Besche has assisted Lime Petroleum in entering into an agreement to acquire Repsol Norge's interests in the Brage field, on the Norwegian continental shelf. The agreement secures Lime Petroleum 33.84 per cent of the field, and the price will be approximately NOK 356 million at today's price.

Arntzen de Besche represents Edison Spa in sale of Edison Norge

Edison announced on 30 December 2020 an agreement to sell its Norwegian subsidiary, Edison Norge AS, to Sval Energi AS (backed by HitecVision) based on an enterprise value of USD 300 million and 1 January 2020 as the financial effective date.

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