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RockRose Energy currently holds non-operated interests in 6 UK Central North Sea oil and gas fields. Its assets include the producing Arran, Nelson & Howe, and Blake & Ross fields, as well as the Tain exploration opportunity.

Arran Field

The BCA comprises 11 gas fields operated by Perenco UK, 7 of which are producing fields. The 2 main fields in the BCA are Leman and Indefatigable, which began production in 1969 and 1971, respectively. The development of smaller associated fields began in 1993 and is largely conducted through the 2 main fields. RockRose Energy holds non-operated interests in the Bell, East and South Leman, Indefatigable (including Indefatigable SW), Davy and North Davy, Boyle, and Browne fields. In addition, RockRose has interests in the Perenco-operated Bacton Terminal and the Shell-operated Inde/Leman Joint Compression Pipeline.

Out of the 6 smaller fields produced through the Indefatigable facility, the gas from the 4 RockRose assets (Davy, North Davy, Browne, and Boyle) is delivered via the Davy platform and flowed back to Indefatigable. Gas from Bell is produced via the abandoned Bessemer platform and flowed back to Indefatigable. The Indefatigable field has been developed with 4 platforms and 40 wells, and its gas is transported to the Leman 27B platform via a pipeline. Leman gas is produced through the Leman facilities and transported to the Bacton Terminal via a pipeline.

Equity: 35.1% (Bell); 21.7% (Leman fields); 23.1% (Indefatigable fields); 27.78% (Davy fields); 27.8% (Boyle); 27.5% (Browne); 22.19% (Bacton Terminal); 9.84-13.67% (Inde/Leman Joint Compression Pipeline)

Status: Onstream

Location: The BCA is located in the Southern North Sea, off the coast of Norfolk.

Potential: Viaro Energy acquired interests in several BCA fields in 2021, as part of its long-term strategy to support life extension initiatives for mature gas assets in the North Sea. Considering the age of the infrastructure, the operator initiated the Southern Hub Asset Rationalisation Project (SHARP), a strategic investment project designed to extend the economic production life of the existing Leman and Indefatigable gas fields. The assets are being modified to become Normally Unmanned Installations, and redundant facilities are planned to be removed, thereby delivering a more efficient and cost-effective production operation.

Latest Production Results: ~3,800 boepd / 6.7 Mmboe net to RockRose in 2022

Nelson & Howe Fields 

The Nelson & Howe oil fields are operated by Shell. Developed with a fixed platform, Nelson produces light oil from a reservoir at a depth of approximately 2,200 meters. The smaller Howe field was brought onstream as a single-well subsea tie-back to the Nelson platform. The oil from the platform is transported by pipeline to the Forties field and then to shore via the Forties pipeline system.

Equity: 7.48% (Nelson); 20.00% (Howe)

Status: Onstream

Location: Nelson is located approximately 200 kilometres northeast of Aberdeen in a water depth of 88 metres. Howe is located 14 kilometres east of the Nelson field, in a water depth of around 90 metres.

Potential: The Nelson and Howe fields began production in 1994 and 2004, respectively. RockRose Energy acquired interests in the fields in December 2017, in order to support the life cycle extension of a high-quality reservoir.

Latest Production Results: ~1,000 boepd / 1.9 Mmboe net to RockRose in 2022

Blake & Ross Field

The Blake & Ross oil field, operated by Repsol Sinopec, produces into the Bleo-Holm Floating Production, Storage & Offloading (FPSO) vessel via subsea infrastructure. The Ross field is currently offline, while oil from the Blake field is produced via a subsea manifold and dual flowlines to the Ross FPSO. Blake is divided into two areas – the Blake Channel and the Blake Flank. The two were developed separately, with 6 production wells and 2 water injection wells drilled into the Blake Channel, and 2 production wells drilled into the Blake Flank.

Equity: 30.82%

Status: Onstream

Location: Blake is located around 120 kilometres northeast of Aberdeen in a water depth of approximately 110 meters.

Potential: RockRose Energy’s 2017 acquisition of Blake & Ross is another initiative aimed at prolonging the life cycle of mature gas fields to ensure they reach full production potential. The Blake field has been producing gas since 2001, while Ross began production in 1999.

Latest Production Results: ~2,800 boepd / 4.8 Mmboe net to RockRose in 2022

Tain Field 

Tain is an appraised and tested oil accumulation operated by Repsol-Sinopec. Current plans involve developing the Tain field with two wells, tied back to the Bleo Holm FPSO vessel. Produced oil will be exported by shuttle tanker, while excess gas will be exported via the Frigg pipeline.

Equity: 50.00%

Status: Pre-development appraisa

Location: Tain is located 10 kilometres northwest of the Blake field, in a water depth of around 100 metres.

Potential: Once development studies are completed, the project is expected to reach the Final Investment Decision by the end of 2023, with first oil in 2025. Peak production is expected to exceed 6,000 boepd.

Other Rockrose Operations

UK Southern Sea

The Netherlands

West of Shetland

London

20-23 Holborn, Halton House
London, EC1N 2JD

+44 203 826 4800

Aberdeen

37 Albyn Place
Aberdeen, AB10 1YN

+44 122 480 3000

The Netherlands

Schiphol Boulevard
127 G4.26 1118BG Schiphol
Amsterdam, Nederland

Media Enquiries:

For all media enquiries, please contact press@viaro.co.uk or 
Vigo Consulting: viaro@vigoconsulting.com.