What RockRose Energy plc does

RockRose Energy plc, trading as Viaro Energy, is a UK-based independent upstream oil and gas group operating across the UK Continental Shelf and the Netherlands North Sea. The company holds working interests in over 60 fields and more than 30 assets spanning the UK Central, Southern, and Northern North Sea, West of Shetland, and Netherlands North Sea, with daily production of less than 25,000 barrels of oil equivalent. More than 75% of the portfolio is weighted to natural gas, which the company frames as a transition energy aligned with UK and European energy security objectives, and through strategic joint-venture partnerships Viaro contributes up to 9% of total gross daily UK gas production.

The business model is built predominantly around non-operated working interests acquired from majors and independents including Shell, ExxonMobil, TAQA, and Deltic Energy, with output sold into commodity markets via North Sea gas pipeline infrastructure and oil tanker/terminal routes to refineries and energy traders. Recent acquisitions — Deltic Energy in June 2024, Shell and ExxonMobil Southern North Sea assets, and Evoterra — have expanded the asset base, added an integrated renewables vertical via Evoterra, and opened the German market. The company also signaled an intent to move toward operatorship, appointing Jillian Owen as Head of Transition to Operatorship and as Chief Operating Officer.

Operations are supported by offices in London (headquarters), Aberdeen, and Amsterdam, and the group is founder-led by CEO Francesco Mazzagatti. The company positions itself around long-term energy security and ESG-aligned North Sea production, with active community and environmental partnerships, sustainability disclosures, and CEO-authored commentary in outlets such as GB News on UK energy policy and the role of North Sea drilling alongside renewables.

Name

RockRose Energy plc

Legal name

RockRose Energy Limited

Website

https://rockroseenergy.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

RockRose Energy plc (trading as Viaro Energy) is a UK-based independent upstream oil and gas group with non-operated working interests in over 60 North Sea fields across the UKCS and Netherlands, producing under 25,000 boepd with a portfolio over 75% weighted to natural gas.

Ownership category

akta.pro rank

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Infrastructure, Supply Chain, Others

Revenue model

1. Oil and Gas Production: Revenue generated from production and sale of natural gas and petroleum products from North Sea fields. The portfolio consists of over 75% natural gas assets, with working interests in over 60 fields across UKCS and Netherlands North Sea.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

RockRose Energy plc (trading as Viaro Energy) is a UK-based independent upstream energy group that holds non-operated working interests in over 60 oil and gas fields across the UK Continental Shelf and the Netherlands North Sea. More than 75% of its portfolio consists of natural gas assets positioned as a transition energy, with daily production of less than 25,000 barrels of oil equivalent per day. The group generates revenue by producing and selling natural gas and petroleum from these North Sea fields through subsidiary companies.

Product overview

RockRose Energy plc (trading as Viaro Energy) is a UK-based independent energy group operating across the UK Continental Shelf (UKCS) and Netherlands North Sea. The company operates through its parent entity RockRose Energy Limited and holds working interests in over 60 fields, with daily production of less than 25,000 boepd. More than 70% of the portfolio consists of natural gas assets. The company has expanded through acquisitions including Deltic Energy, Shell and ExxonMobil's Southern North Sea assets, and Evoterra's integrated energy and renewables portfolio (marking entry into Germany and renewables).

Differentiator

Problem solved

Functional benefit

Products and services

• Natural Gas Production (North Sea) Natural gas produced from non-operated working interests across UKCS and Netherlands North Sea fields, delivered to European gas markets via pipeline infrastructure.
• Crude Oil / Petroleum Production (North Sea) Crude oil and petroleum liquids produced from non-operated working interests across North Sea fields, transported via tankers and terminal infrastructure to refineries and commodity markets.
• Integrated Energy and Renewables Portfolio (Evoterra) Integrated energy and renewables portfolio held through the Evoterra subsidiary, extending the group's energy offering beyond hydrocarbons into renewable energy and integrated energy services in Germany.

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Eight partnerships are on record, tiered core and minor.

• Deltic EnergycoreStrategic or Co-development PartnerViaro Energy reached an agreement to acquire Deltic Energy via its main operating subsidiary, strengthening the North Sea portfolio through this acquisition.
• EvoterracoreStrategic or Co-development PartnerViaro Energy acquired Evoterra's full portfolio of integrated energy, entering the German market and renewables sector.
• ShellcoreStrategic or Co-development PartnerViaro Energy acquired Shell's Southern North Sea assets, taking over UK Southern North Sea assets previously operated by Shell.
• ExxonMobilcoreStrategic or Co-development PartnerViaro Energy acquired ExxonMobil's Southern North Sea assets as part of the joint deal with Shell, gaining full ownership of SNS assets.
• Portlethen Moss Conservation GroupminorOthersCollaboration on The Viaro Sensory Garden project, demonstrating commitment to environmental restoration and conservation.
• Trees for CitiesminorOthersPartnership for volunteering at Closes Park, Hillingdon, supporting urban reforestation and community engagement.
• Hackney City FarmminorOthersColleagues from across the Viaro Energy group volunteered at Hackney City Farm as part of social responsibility initiatives.
• Commonwealth at 75minorOthersPartnership to promote shared vision for a regenerative future, aligning with ESG and sustainability objectives.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• NEO Energy: Private UK North Sea-focused upstream operator backed by HitecVision. Comparable as a privately held, acquisition-driven North Sea consolidator pursuing non-operated and operated working interests in UKCS.
• Harbour Energy: Largest UK North Sea-focused independent E&P with operated and non-operated interests across UKCS and Netherlands. Comparable in terms of North Sea basin focus, mixed gas/oil weighting, and strategy of acquiring mature portfolios from majors.
• ONE-Dyas: Privately held Dutch operator with North Sea production across the UK and Netherlands sectors. Comparable in gas-weighted North Sea exposure and cross-border UK/Netherlands operations.
• Spirit Energy: Joint venture of Centrica and Stadtwerke München with operated North Sea production across UK, Norway, and Netherlands. Comparable in multi-country North Sea footprint and gas-weighted portfolio.
• Serica Energy: UK-listed independent E&P with producing North Sea assets (including the Bruce, Keith, and Rhum fields). Highly comparable as a gas-weighted UKCS producer that has acquired assets divested by majors.
• Waldorf Production: Independent UK Continental Shelf producer with a portfolio of operated and non-operated interests. Comparable as a small-to-mid cap North Sea E&P focused on late-life asset management.
• Ithaca Energy: UK North Sea operator focused on the Central North Sea with a similar mix of operated and non-operated assets. Comparable in geographic focus, asset maturity profile, and strategy of consolidating North Sea production.
• EnQuest: Independent UK North Sea E&P focused on mature field redevelopment and late-life production. Comparable in basin focus, asset maturity profile, and emphasis on extending tail production from mature UKCS assets.

Broad incumbents

• Shell: Global supermajor that divested its UK Southern North Sea assets to Viaro. Comparable as a North Sea basin incumbent and counterparty; sets the asset-quality benchmark Viaro is inheriting.
• Repsol Resources UK: Upstream arm of Repsol with North Sea production in the UK and Norway. Comparable as a North Sea producer divesting mature assets into the same consolidation pool where Viaro is acquiring.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/ViaroEnergy?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor
• LinkedInlinkedin.com/company/rockrose-energy

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A3 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RockRose Energy plc