SERICA ENERGY PLC

Share Issue/Capital Change • Dec 17, 2025

National Storage Mechanism | Additional information

RNS Number : 9795L

Serica Energy PLC

17 December 2025

17 December 2025

Serica Energy Plc.

('Serica' or 'the Company')

BLOCK LISTING SIX MONTHLY RETURNS

Serica Energy Plc (AIM: SQZ) today makes the following notification pursuant to Schedule Six of the AIM Rules for Companies regarding its existing block admission arrangements.

Name of applicant:		Serica Energy plc
Name of scheme:		Employee Share Incentive Plan
Period of return:	From:	18 June 2025	To:	17 December 2025
Balance of unallotted securities under scheme(s) from previous return:		232,898
Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):		Nil
Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):		Nil
Equals:  Balance under scheme(s) not yet issued/allotted at end of period:		232,898

	Name of applicant:			Serica Energy plc
	Name of scheme:			Serica Energy plc 2018 Sharesave Plan
	Period of return:	From:		18 June 2025		To:		17 December 2025
	Balance of unallotted securities under scheme(s) from previous return:			520,783
	Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):			Nil
	Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):			Nil
	Equals:  Balance under scheme(s) not yet issued/allotted at end of period:			520,783
Name of applicant:					Serica Energy plc
Name of scheme:					Share Option Plan 2005
Period of return:			From:		18 June 2025		To:		17 December 2025
Balance of unallotted securities under scheme(s) from previous return:					1,312,554
Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):					Nil
Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):					Nil
Equals:  Balance under scheme(s) not yet issued/allotted at end of period:					1,312,554

Name of applicant:		Serica Energy plc
Name of scheme:		2017 Long Term Incentive Plan
Period of return:	From:	18 June 2025	To:	17 December 2025
Balance of unallotted securities under scheme(s) from previous return:		3,045,296
Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):		Nil
Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):		Nil
Equals:  Balance under scheme(s) not yet issued/allotted at end of period:		3,045,296

Name of contact:	CoSec Team
Telephone number of contact:	44 (0) 20 7487 7300

Notes:

This Block Listing Six Monthly Return is a document that Serica is required to submit to a Regulatory Information Service (RIS) every six months. It details the number of already admitted securities that have been issued or allotted under their block listing facilities during the preceding six months.

Following the above notifications, the total voting rights remain unchanged with the Company holding none of its Ordinary Shares in treasury and has 393,568,408 Ordinary Shares in issue.  Therefore, the total voting rights in the Company is 393,568,408.

-end-

Contacts:

Serica Energy plc	+44 (0)20 7487 7300
Martin Copeland (CFO) / Andrew Benbow (Head of Investor Relations)
Peel Hunt (Sponsor, Nomad & Joint Broker)	+44 (0)20 7418 8900
Richard Crichton / David McKeown / Emily Bhasin
Jefferies (Joint Broker)	+44 (0)20 7029 8000
Sam Barnett / Cameron Jones
Vigo Consulting (PR Advisor)	+44 (0)20 7390 0230
Patrick d'Ancona	[email protected]

Notes to Editors

Serica Energy is an independent British oil and gas company with a broad portfolio of assets located in the UK Continental Shelf (UKCS). The Company is responsible for about 5% of the UK's natural gas, which plays a significant role in supporting the country's energy transition, and has invested over £1 billion in the UK supply chain since 2020. Serica maintains a balanced output of oil and gas across its operations.

The Company's key producing assets are grouped around two major hubs: the Bruce, Keith, and Rhum fields in the Northern North Sea, where Serica is the operator; and a mix of operated and non-operated fields connected to the Triton FPSO in the Central North Sea.

Serica aims to create shareholder value through a mix of production from existing oil and gas fields, organic investment and M&A.

Serica expects to complete the purchase of Prax Upstream Limited during 2025, gaining 100% ownership and operatorship of the Lancaster field situated in the West of Shetlands area. In H1 2026, Serica is also set to complete the acquisition of a 40% operated stake in the Greater Laggan Area offshore fields and associated Shetland Gas Plant from TotalEnergies and non-operated interests in the Catcher and Golden Eagle Area Development fields from ONE-Dyas.

Serica's shares trade on the AIM market of the London Stock Exchange (ticker: SQZ). More information about Serica is available on the Company's website (www.serica-energy.com). To receive news updates by email, interested parties can subscribe through the website.

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