REG-End of Stabilisation Notice

Diversified EnergyAnnouncement

19/09/2025 07:00

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Neither this announcement, nor anything contained herein, shall form the basis
of, or be relied upon in connection with, any offer or commitment whatsoever
in any jurisdiction. Investors should not subscribe for or purchase any shares
referred to in this announcement.

September 19, 2025

Diversified Energy Company PLC

(“Diversified” or the "Company")

End of Stabilisation Notice

Further to the pre-stabilisation period announcement dated 17 September, 2025,
Mizuho Securities USA LLC (Contact: James Watts (+1 (212) 205-7603)) hereby
gives notice that (i) the Stabilising Manager named below and its affiliates
did not undertake any stabilisation (within the meaning of Article 3.2(d) of
the Market Abuse Regulation (EU/596/2014), including as it forms part of UK
domestic law by virtue of the European Union (Withdrawal) Act 2018) in
relation to the securities identified below; (ii) the stabilisation period
ends with immediate effect; and (iii) the over-allotment option for 857,002
ordinary shares (representing 15% of the total number of Ordinary Shares
comprised in the offer) was exercised.

 The securities:                                                                                                   
 Issuer:               Diversified Energy Company PLC (the " Company ")                                            
 Securities:           Ordinary Shares with a par value of £0.20 each                                              
 ISIN:                 GB00BQHP5P93                                                                                
 Offering size:        5,713,353 Ordinary Shares (6,570,355 Ordinary Shares including the over-allotment option)   
 Description:          An underwritten secondary offering in the United States of up to 5,713,353 ordinary shares  
 Offer price:          US$13.75                                                                                    
 Stabilisation:                                                                                                    
 Stabilising manager:  Mizuho Securities USA LLC of 1271 Avenue of the Americas, New York, New York 10020          

Important Notice to UK and EU Investors

This announcement is for information purposes only and does not constitute an
invitation or offer to underwrite, subscribe for or otherwise acquire or
dispose of any securities of the Company in any jurisdiction in which such an
offer or solicitation is unlawful. No reliance may be placed by any person for
any purpose on the information contained in this announcement or its accuracy,
fairness or completeness.

This announcement is addressed to and directed at persons who: (A) if in
Member States of the European Economic Area ("Member States"), are "qualified
investors" within the meaning of Article 2(e) of the Prospectus Regulation
(EU) 2017/1129 (as amended) ("Qualified Investors"); and (B) if in the United
Kingdom, are "qualified investors" within the meaning of Article 2(e) of
Regulation (EU) 2017/1129 (as amended) as it forms part of retained EU law by
virtue of the European Union (Withdrawal) Act 2018 who are: (i) persons who
have professional experience in matters relating to investments falling within
the definition of "investment professionals" in Article 19(5) of the Financial
Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended
(the "Order"); or (ii) high net worth bodies corporate, unincorporated
associations and partnerships or the trustees of high value trusts falling
within Article 49(2)(a) to (d) of the Order; or (C) are other persons to whom
it may otherwise lawfully be communicated (all such persons referred to in (B)
and (C) together being "Relevant Persons"). This announcement must not be
acted or relied on: (i) in the United Kingdom, by persons who are not
Relevant Persons; and (ii) in any Member State by persons who are not
Qualified Investors. Any investment activity to which this announcement
relates: (i) in the United Kingdom is available only to, and may be engaged
only with, Relevant Persons; and (ii) in any Member State is available only
to, and may be engaged only with, Qualified Investors.

This announcement is not for release, publication or distribution, directly or
indirectly, in or into the Australia any jurisdiction where to do so would
constitute a violation of the relevant laws of such jurisdiction. The
distribution of this announcement may be restricted by law in certain
jurisdictions and persons into whose possession any document or other
information referred to herein comes should inform themselves about and
observe any such restriction. Any failure to comply with these restrictions
may constitute a violation of the securities laws of any such jurisdiction.

This announcement does not constitute or form a part of any offer or
solicitation to purchase or subscribe for, or otherwise invest in, securities,
to any person in any jurisdiction to whom or in which such offer or
solicitation is unlawful.

There will be no public offer of the securities referred to herein in 
Australia, Japan or South Africa. Subject to certain exceptions, the
securities referred to herein may not be offered or sold in Australia,
Japan or South Africa or to, or for the account or benefit of, any
national, resident or citizen of Australia Japan or South Africa