REG-Transaction in Own Shares

Diversified EnergyAnnouncement

18/09/2025 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 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 $14.2444 per Share through Mizuho Securities USA LLC (MSUSA).
The Shares acquired will, in due course, be cancelled.

Aggregated Information

 Date of Purchase:                                    17 September 2025  
 Aggregate Number of Ordinary Shares Purchased:       80,914             
 Lowest Price Paid per Share (USD):                   14.02              
 Highest Price Paid per Share (USD):                  14.35              
 Volume-Weighted Average Price Paid per Share (USD):  14.2444            



Following the cancellation of Shares, Diversified will have 77,854,553
Ordinary Shares of 20 Pence each in issue and no Ordinary Shares are held in
treasury. This figure of 77,854,553 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:  17 September 2025                                      
 Investment firm:     Mizuho Securities USA LLC                              



 Aggregate number of   Daily volume            Daily highest         Daily lowest      Trading   
 ordinary shares       weighted average        price paid per        price per share   Venue     
 acquired              price paid              share                                             
 38,639                $ 14.2198               $ 14.35               $ 14.02           ARCX      
 75                    $ 14.3300               $ 14.33               $ 14.33           BAML      
 1,080                 $ 14.3500               $ 14.35               $ 14.35           BARX      
 888                   $ 14.3086               $ 14.33               $ 14.30           BATS      
 2,755                 $ 14.3439               $ 14.35               $ 14.33           EDGX      
 1,517                 $ 14.3129               $ 14.35               $ 14.27           IEXG      
 200                   $ 14.3500               $ 14.35               $ 14.35           ITGI      
 400                   $ 14.3488               $ 14.35               $ 14.35           JPMX      
 27,228                $ 14.2223               $ 14.35               $ 14.04           MEMX      
 600                   $ 14.3200               $ 14.34               $ 14.30           SGMT      
 574                   $ 14.3290               $ 14.35               $ 14.30           UBSA      
 148                   $ 14.3200               $ 14.32               $ 14.32           VFMI      
 4,769                 $ 14.2418               $ 14.35               $ 14.18           XNAS      
 2,041                 $ 14.1891               $ 14.19               $ 14.18           XNYS      
 Trading venue         Currency                                                                  
 NYSE                  USD                     $ 14.2444             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