22 August 2025

Serica Energy plc
('Serica' or 'the Company')

Update on production at Triton FPSO

Serica Energy plc (AIM: SQZ) announces the first lifting of oil from the Triton FPSO since the resumption of production is underway.

Production continues to ramp up in line with the previously stated plan, with the restart of production from certain wells on the Bittern field (Serica: 64.6%) having been followed by wells on the Evelyn (Serica: 100%), Gannet E (Serica: 100%), and Guillemot West (Serica: 10%) fields being brought online.

Triton Hub production over the last two weeks has averaged 20,000 boepd net to Serica, a figure that is set to rise as more wells come back onstream as part of the planned start up sequence, including productive wells from the Bittern and Gannet E fields. New wells drilled on the Guillemot North West (Serica: 10%) and Evelyn fields are also scheduled to be brought onstream for the first time.

Total Serica portfolio production averaged over 50,000 boepd in the days ahead of production ramping down at the Bruce Hub for the annual maintenance period, which began as planned on 16 August and is scheduled to last for around 12 days.

Serica retains production guidance for the year of 33,000 to 35,000 boepd.

The technical information contained in the announcement has been reviewed and approved by Fergus Jenkins, VP Technical at Serica Energy plc. Mr. Jenkins (MEng in Petroleum Engineering from Heriot-Watt University, Edinburgh) is a Chartered Engineer with over 25 years of experience in oil & gas exploration, development and production and is a member of the Institute of Materials, Minerals and Mining (IOM3) and the Society of Petroleum Engineers (SPE).

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NOTES TO EDITORS

Serica Energy is a British independent oil and gas exploration and production company with a portfolio of UKCS assets. Serica has a balance of gas and oil production. The Company is responsible for about 5% of the natural gas produced in the UK, a key element in the UK's energy transition.

Serica's producing assets are focused around two main hubs: the Bruce, Keith and Rhum fields in the UK Northern North Sea, which it operates, and a mix of operated and non-operated fields tied back to the Triton FPSO. Serica also has operated interests in the producing Columbus (UK Central North Sea) and Orlando (UK Northern North Sea) fields and a non-operated interest in the producing Erskine field in the UK Central North Sea.

Serica has a two-pronged strategy for growth comprising investment in its existing portfolio and M&A. Further information on the Company can be found at www.serica-energy.com. The Company's shares are traded on the AIM market of the London Stock Exchange under the ticker SQZ. To receive news releases via email, please subscribe via the Company website.