REG-Transaction in Own Shares

Diversified Energy CoAnnouncement

18/12/2025 07:05

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DIVERSIFIED ENERGY COMPANY

("Diversified", or the "Company")

DIVERSIFIED ENERGY COMPANY (NYSE:DEC; LSE:DEC) announces that, in accordance
with the terms of its share buyback program announced on March 20, 2025, the
Company has purchased 567,604 shares of common stock, par value $0.01 per
share of the Company (the "Shares") in the market at a volume-weighted average
price of $13.25 per Share through Morgan Stanley & Co. LLC. The Shares
acquired will, in due course, be cancelled.

Aggregated Information

 Date of Purchase:                                    December 17, 2025  
 Aggregate Number of Shares Purchased:                567,604            
 Lowest Price Paid per Share (USD):                   $13.25             
 Highest Price Paid per Share (USD):                  $13.25             
 Volume-Weighted Average Price Paid per Share (USD):  $13.25             
                                                                         

Following the cancellation of Shares, Diversified will have 79,560,478 shares
of common stock in issue, and no shares of common stock are held in treasury.
This figure of 79,560,478 shares 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.

For further information, please contact:

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

About Diversified Energy Company

Diversified is a leading publicly traded energy company focused on acquiring,
operating, and optimizing cash generating energy assets. 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