REG-Transaction in Own Shares

Diversified EnergyAnnouncement

19/09/2025 08:15

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DIVERSIFIED ENERGY COMPANY PLC

("Diversified", or the "Company")

DIVERSIFIED ENERGY COMPANY PLC (LSE:DEC, NYSE:DEC) announces that, in
accordance with the terms of its share buyback programme announced on 20 March
2025, the Company has purchased 80,914 Ordinary Shares of 20 Pence each in the
capital of the Company (the "Shares") in the market at a volume-weighted
average price of $14.1768 per Share through Mizuho Securities USA LLC (MSUSA).
The Shares acquired will, in due course, be cancelled.

Aggregated Information

 Date of Purchase:                                    18 September 2025  
 Aggregate Number of Ordinary Shares Purchased:       80,914             
 Lowest Price Paid per Share (USD):                   14.05              
 Highest Price Paid per Share (USD):                  14.26              
 Volume-Weighted Average Price Paid per Share (USD):  14.1768            



Following the cancellation of Shares, Diversified will have 77,773,639
Ordinary Shares of 20 Pence each in issue and no Ordinary Shares are held in
treasury. This figure of 77,773,639 may be used by shareholders as the
denominator for the calculations by which they will determine if they are
required to notify their interest in, or a change to their interest in, the
Company under the FCA's Disclosure Guidance and Transparency Rules.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market
Abuse Regulation), (as in force in the UK and as amended by the Market Abuse
(Amendment) (EU Exit) Regulations 2019), the table below contains detailed
information of the individual trades made by Mizuho Securities USA LLC as part
of the buyback programme.

Schedule of Purchases

 Shares purchased:    DIVERSIFIED ENERGY COMPANY PLC (ISIN: GB00BQHP5P93)  
 Dates of purchases:  18 September 2025                                    
 Investment firm:     Mizuho Securities USA LLC                            



 Aggregate          Daily volume        Daily highest       Daily lowest   Trading   
 number of          weighted            price paid          price per      Venue     
 ordinary shares    average price       per share           share                    
 acquired           paid                                                             
 9,060              $ 14.1623           $ 14.25             $ 14.11        ARCX      
 779                $ 14.1344           $ 14.17             $ 14.11        ASPN      
 182                $ 14.1488           $ 14.16             $ 14.14        BAML      
 580                $ 14.1463           $ 14.16             $ 14.14        BARX      
 2,432              $ 14.1652           $ 14.26             $ 14.05        BATS      
 200                $ 14.1900           $ 14.22             $ 14.16        BATY      
 100                $ 14.1500           $ 14.15             $ 14.15        BNPC      
 100                $ 14.1200           $ 14.12             $ 14.12        EDGA      
 5,762              $ 14.1544           $ 14.24             $ 14.08        EDGX      
 400                $ 14.1400           $ 14.14             $ 14.14        HRTF      
 400                $ 14.1433           $ 14.15             $ 14.14        ICBX      
 17,315             $ 14.1972           $ 14.26             $ 14.11        IEXG      
 363                $ 14.1500           $ 14.15             $ 14.15        ITGI      
 652                $ 14.1571           $ 14.19             $ 14.12        JPMX      
 6,478              $ 14.2136           $ 14.26             $ 14.14        JSJX      
 800                $ 14.1825           $ 14.23             $ 14.14        LEVL      
 175                $ 14.1500           $ 14.16             $ 14.14        MEMX      
 270                $ 14.1383           $ 14.23             $ 14.06        SGMT      
 1,232              $ 14.1789           $ 14.26             $ 14.11        UBSA      
 105                $ 14.1450           $ 14.15             $ 14.14        VFMI      
 100                $ 14.1500           $ 14.15             $ 14.15        XBOS      
 15,972             $ 14.1642           $ 14.25             $ 14.06        XNAS      
 17,457             $ 14.1707           $ 14.26             $ 14.10        XNYS      
 Trading venue      Currency                                                         
 NYSE               USD                 $ 14.1768           80,914                   
                                                                                     



For further information, please contact:

 Diversified Energy Company PLC                                        +1 973 856 2757  
 Doug Kris                                                             dkris@dgoc.com   
 Senior Vice President, Investor Relations & Corporate Communications  www.div.energy   



About Diversified Energy Company PLC

Diversified is a leading publicly traded energy company focused on natural gas
and liquids production, transport, marketing, and well retirement. Through our
differentiated strategy, we acquire existing, long-life assets and invest in
them to improve environmental and operational performance until retiring those
assets in a safe and environmentally secure manner. Recognized by ratings
agencies and organizations for our sustainability leadership, this
solutions-oriented, stewardship approach makes Diversified the Right Company
at the Right Time to responsibly produce energy, deliver reliable free cash
flow, and generate shareholder value