REG-Transaction in Own Shares

Diversified EnergyAnnouncement

06/10/2025 07:00

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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 123,586 Ordinary Shares of 20 Pence each in
the capital of the Company (the "Shares") in the market at a volume-weighted
average price of $13.7521 per Share through Mizuho Securities USA LLC (MSUSA).
The Shares acquired will, in due course, be cancelled.

Aggregated Information

 Date of Purchase:                                    03 October 2025  
 Aggregate Number of Ordinary Shares Purchased:       123,586          
 Lowest Price Paid per Share (USD):                   13.62            
 Highest Price Paid per Share (USD):                  13.90            
 Volume-Weighted Average Price Paid per Share (USD):  13.7521          

Following the cancellation of Shares, Diversified will have 76,852,459
Ordinary Shares of 20 Pence each in issue and no Ordinary Shares are held in
treasury. This figure of 76,852,459 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:  3 October 2025                                       
 I nvestment firm:    Mizuho Securities USA LLC                            



 Aggregate number   Daily volume            Daily highest       Daily lowest   Trading Venue  
 of ordinary        weighted average        price paid          price per                     
 shares acquired    price paid              per share           share                         
 2,544              $ 13.7317               $ 13.88             $ 13.62        ARCX           
 1,067              $ 13.6900               $ 13.87             $ 13.62        ASPN           
 76                 $ 13.6500               $ 13.66             $ 13.64        BAML           
 363                $ 13.7450               $ 13.86             $ 13.63        BATS           
 1,087              $ 13.8532               $ 13.90             $ 13.75        BATY           
 220                $ 13.8540               $ 13.89             $ 13.75        EDGA           
 984                $ 13.7831               $ 13.83             $ 13.64        EDGX           
 200                $ 13.6600               $ 13.66             $ 13.66        ICBX           
 95,660             $ 13.7480               $ 13.90             $ 13.62        IEXG           
 6                  $ 13.6875               $ 13.69             $ 13.69        JPMX           
 4,182              $ 13.8100               $ 13.89             $ 13.65        JSJX           
 164                $ 13.6400               $ 13.64             $ 13.64        MEMX           
 13                 $ 13.6300               $ 13.63             $ 13.63        SGMT           
 5,012              $ 13.7811               $ 13.90             $ 13.62        UBSA           
 500                $ 13.8060               $ 13.89             $ 13.74        XBOS           
 200                $ 13.8150               $ 13.88             $ 13.75        XCIS           
 4,999              $ 13.7172               $ 13.89             $ 13.62        XNAS           
 4,770              $ 13.7775               $ 13.90             $ 13.63        XNYS           
 1,539              $ 13.6524               $ 13.69             $ 13.63        XPSX           
 Trading venue      Currency                                                                  
 NYSE               USD                     $ 13.7521           123,586                       

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