Key Points
- Serica Energy plc has completed the acquisition of a 40% operated interest in the Greater Laggan Area (GLA) and associated infrastructure from TotalEnergies, establishing a new operated gas hub West of Shetland in the UK Continental Shelf.
- The deal, announced on 30 September 2025 and completed on 26 March 2026, adds over 5,000 barrels of oil equivalent per day (boepd) of net production to Serica’s portfolio.
- Serica settled the consideration for a nominal £1 and received a payment of $55.7 million from TotalEnergies, reflecting interim post-tax cashflows between the economic date of 1 January 2024 and completion.
- The GLA assets include the producing Laggan and Tormore fields, the Shetland Gas Plant (SGP), and four operated near-field exploration licences, with net 2P reserves of 4.0 million barrels of oil equivalent (mmboe) and 2C resources of 5.4 mmboe as at 31 December 2025.
- Growth opportunities encompass the Glendronach tie-back project, infill drilling at Tormore, exploration licences, and third-party business at the SGP.
- This acquisition follows Serica’s recent purchases, including Prax Upstream Limited for £14.5 million (completed December 2025), and a pending £57 million deal for Southern North Sea assets from Spirit Energy (Centrica subsidiary), expected in H2 2026.
- The Spirit Energy deal adds 13,500 boepd pro-forma production (96% gas), 18.7 mmboe 2P reserves, interests in Cygnus (15%), Clipper South (25%), Greater Markham Area (operated), Eris, Ceres, Galleon, and 1.8% in NOGAT pipeline; Spirit retains over 75% decommissioning liabilities.
- Serica’s CEO Chris Cox highlighted the strategic fit for diversification, cash generation, and shareholder value.
- Amid UK North Sea consolidation, Serica focuses on gas assets for energy security; full-year 2025 results show 50% profit drop due to Triton FPSO issues, but optimism from expansions.
- Serica plans Main Market listing in 2026.
Serica Energy secures major West of Shetland hub through TotalEnergies deal
Serica Energy plc, an independent British oil and gas company, has finalised a transformative acquisition from TotalEnergies, cementing its position as a key operator in the UK North Sea. The completion of the purchase of a 40% operated interest in the Greater Laggan Area (GLA) on 26 March 2026 marks the establishment of a new offshore hub West of Shetland, bolstering Serica’s gas production capabilities amid ongoing basin consolidation.
As detailed in Serica’s official announcement via Investegate, the company has assumed operatorship of critical infrastructure, including the Shetland Gas Plant, positioning it as a central hub for regional gas processing. This move delivers immediate net production of just over 5,000 boepd, with significant upside from undeveloped resources.
The transaction required only a nominal payment of £1 from Serica, while TotalEnergies handed over $55.7 million, accounting for post-tax cashflows generated since the economic effective date of 1 January 2024. Unaudited estimates, based on an independent Sproule ERCE evaluation effective 30 June 2025 and adjusted for 2025 production, attribute net 2P reserves of 4.0 mmboe and 2C resources of 5.4 mmboe to Serica’s share as at 31 December 2025.
What does the Greater Laggan Area acquisition include?
The Greater Laggan Area encompasses the producing Laggan and Tormore gas fields, connected to the onshore Shetland Gas Plant via subsea infrastructure. Serica now holds TotalEnergies’ full 40% operated stake in these assets, along with usage rights and four operated exploration licences in near-field blocks within the SGP catchment.
As reported by World Oil on 26 March 2026, the assets provide “multiple sources of organic growth potential,” including the Glendronach tie-back project, infill drilling opportunities at Tormore, and prospective exploration acreage. Third-party business development at the SGP further enhances the hub’s strategic value, making it a focal point for future tie-backs in one of the UK’s most promising gas basins.
Serica’s notes to editors emphasise the company’s role in delivering around 10% of UK gas production, with over £1 billion invested in the supply chain since 2020. The GLA fits seamlessly into this portfolio, balancing Serica’s output across hubs like Bruce/Keith/Rhum (Northern North Sea, operated) and Triton FPSO (Central North Sea).
How does this fit into Serica’s recent acquisition spree?
This TotalEnergies deal caps a series of strategic buys expanding Serica’s footprint. In December 2025, Serica completed the £14.5 million acquisition of Prax Upstream Limited from Prax Exploration & Production, following North Sea Transition Authority (NSTA) approval. The assets were acquired via new subsidiaries, assuming a $34 million cash balance (with $12 million restricted for FPSO commitments).
Earlier, in September 2025, Serica announced the Prax deal alongside the TotalEnergies SPA, as per Oilprice.com coverage. Additionally, a £57 million ($74-76 million) agreement with Spirit Energy Limited (Centrica subsidiary) for Southern North Sea gas assets is slated for H2 2026 completion.
As outlined by Charles Kennedy of Oilprice.com on 15 December 2025, the Spirit portfolio includes a 15% non-operated stake in the Cygnus field (operated by Ithaca Energy, known for high uptime and low $11/boe opex), 25% in Clipper South (younger assets with drilling potential), operated Greater Markham Area (GMA) straddling UK-Dutch borders, plus Eris, Ceres, Galleon, and 1.8% in the Dutch NOGAT pipeline. Pro-forma impacts: +13,500 boepd (96% gas, first half 2025 levels), +18.7 mmboe 2P reserves at $3.9/boe acquisition cost, and ~$100 million free cash flow by end-2028.
Spirit retains >75% decommissioning liabilities, capping Serica’s exposure mainly to non-operated assets deferred to 2030s. UK Investor Magazine reported on 15 December 2025 that the deal establishes Serica as a Southern North Sea operator, diversifying evacuation routes.
Pending from ONE-Dyas: non-operated stakes in Catcher (10%), Golden Eagle Area Development (GEAD, 5.21%), and 100% Lancaster field. Serica’s asset page confirms a broad UKCS portfolio focused on mature field management.
What are the growth opportunities for Serica’s new hub?
The West of Shetland hub offers layered upside. Glendronach tie-back and Tormore infills target near-term production boosts, while four exploration licences probe high-potential blocks. As a processing host, the SGP attracts third-party volumes, echoing infrastructure-led strategies in the Southern North Sea GMA.
Serica’s CEO Chris Cox stated, per Oilprice.com, that the Spirit deal (analogous to GLA) “aligns with Serica’s strategy of diversifying its asset base with high-quality, cash-generative properties, while strengthening shareholder returns and preserving balance sheet flexibility.” No new financing is needed, with interim cashflows offsetting upfront costs.
What challenges has Serica faced amid expansions?
Despite growth, Serica reported a 50% annual pretax profit fall for 2025 on 25-26 March 2026, per Offshore Engineer and Shareprices.com, due to Triton FPSO outages (flare issues from September 2025) and higher opex. Production guidance was cut repeatedly.
Global Energy Network noted on 8 October 2025: “We are stepping up talks with the operator [Dana Petroleum] regarding the future running of the Triton FPSO, aiming to deliver a more robust performance for all stakeholders with production levels that match the subsurface potential.” Serica remains optimistic, offsetting hurdles via expansions.
Full-year results on 26 March 2026 highlight “strategic delivery in 2025” and rising 2P reserves post-acquisitions.
What is the broader context in the UK North Sea?
The deals reflect intensified consolidation among UK independents, prioritising scale, efficiency, and gas for energy security/low emissions. Serica, delivering 10% UK gas, eyes Main Market move in 2026.