Pinsent Masons Advises Ithaca Energy On Transformational North Sea Merger With Eni’s UK Upstream Business

03 May 2024 | 12:48 pm |

Multinational law firm Pinsent Masons is advising leading UK independent exploration & production company Ithaca Energy plc on its transformational combination with Eni S.p.A.’s UK upstream oil and gas assets, establishing Ithaca Energy as the second largest independent operator in the UKCS by 2024 production.

The deal is expected to create a strategic platform for long-term growth in the UK North Sea combining Ithaca Energy’s portfolio of development projects and efficient operating model with enhanced production from the Eni UK Business and Eni’s world-class technical expertise.

The Pinsent Masons team advising on the transaction was led by global head of O&G Rosalie Chadwick and partners Jonathan Woolf and Julian Stanier.

Commenting on the deal Rosalie Chadwick said: “This transaction continues our long history of advising Ithaca Energy on key corporate milestones on its journey to becoming one of the largest operators in the UKCS. We are delighted to have continued to assist Ithaca Energy on this latest transformational deal.”

The firm has an established relationship with Ithaca Energy spanning over 16 years which includes advising on Ithaca Energy’s £2.5bn IPO and US$1.5bn acquisition of Siccar Point in 2022.

Latest press releases

Show me all press releases

Pinsent Masons adds leading energy partner in Australia

Multinational law firm Pinsent Masons continues to build on its strong energy sector expertise with the appointment of Nick Li as a partner in its corporate team in Melbourne.

Pinsent Masons enhances its finance and restructuring capabilities with double partner hire

Multinational law firm Pinsent Masons has hired two expert partners to its cross-jurisdictional Finance & Restructuring practice. Edward Smith will join as a partner in London, whilst Seyavash Rahnema will be based in Dubai.

Pinsent Masons launches new tool to transform legal due diligence reporting

Multinational law firm Pinsent Masons has launched a new online platform to radically streamline the legal due diligence reporting process during complex M&A transactions.

People who viewed this press release also viewed

Show me all press releases

Pinsent Masons adds leading energy partner in Australia

Multinational law firm Pinsent Masons continues to build on its strong energy sector expertise with the appointment of Nick Li as a partner in its corporate team in Melbourne.

Pinsent Masons Advises on World’s Largest Consented Offshore Wind Project

Multinational law firm Pinsent Masons has advised the developer in securing development consent from the Scottish Government for the Berwick Bank Offshore Wind Farm—now officially the largest consented offshore wind project in the world.

Pinsent Masons announces FY24/25 results

Multinational law firm Pinsent Masons has today unveiled its unaudited financial results for the year ending 30 April 2025. This year's results have delivered a revenue increase of 4.7% after a year of continued growth within the firm’s core sectors and across its jurisdictions.

For all media enquiries, including arranging an interview with one of our spokespeople, please contact the press office on

+44 (0)20 7418 8199 or 

Location contacts

We are processing your request. \n Thank you for your patience. An error occurred. This could be due to inactivity on the page - please try again.