REG-PDMR Shareholdings

Diversified Energy CoAnnouncement

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March 20, 2026

Diversified Energy Company
("Diversified," or the "Company")

PDMR Shareholdings

Diversified Energy Company (NYSE: DEC, LSE: DEC), announces the vesting of
certain Performance Stock Units (“PSU's”) and Restricted Stock Units
("RSU's") previously awarded to Persons Discharging Material Responsibility
("PDMRs"), resulting in a change to previously disclosed PDMR holdings of
shares of common stock in the Company ("Common Stock").

Members of the Company's senior management vested in previously awarded PSUs
and RSUs included:
* Rusty Hutson, Jr, Co-Founder and Chief Executive Officer
* Bradley Gray, President and Chief Financial Officer
* Benjamin Sullivan, Senior Executive Vice President, Chief Legal & Risk
Officer and Corporate Secretary
Mr. Hutson's listed awards were solely PSUs, while the awards to Mr. Gray, and
Mr. Sullivan included a mix of PSUs and RSUs. The Company provides additional
information about its long-term incentive plan within its Annual Report on
Form 10-K for the year ended December 31, 2025 available on its website.

To settle the awards, the Company will transfer Common Stock (net of customary
withholdings, including taxes) from its Employee Benefit Trust (the “EBT”)
as set forth in the table below:

                    Net Award  Shares Held Post-Award  % of Issued Share Capital  
 Rusty Hutson, Jr   46,548     1,322,689               1.82%                      
 Bradley Gray       35,659     227,790                 0.31%                      
 Benjamin Sullivan  26,518     88,837                  0.12%                      
                                                                                  

For further information, please contact:

 Diversified Energy Company            +1 973 856 2757        
 Doug Kris                             dkris@dgoc.com         
 www.div.energy                                               
                                                              
 FTI Consulting                        dec@fticonsulting.com  
 U.S. & UK Financial Public Relations                         
                                                              

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.

NOTIFICATION AND PUBLIC DISCLOSURE OF TRANSACTIONS BY PERSONS DISCHARGING
MANAGERIAL RESPONSIBILITIES AND PERSONS CLOSELY ASSOCIATED WITH THEM

 1   Details of the person discharging managerial responsibilities / person closely associated                                                                                                                
 a)  Name                                                               Rusty Hutson, Jr                                                                                                                      
 2   Reason for the notification                                                                                                                                                                              
 a)  Position/status                                                    Co-Founder and Chief Executive Officer                                                                                                
 b)  Initial notification/Amendment                                     Initial notification                                                                                                                  
 3   Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor                                                                                            
 a)  Name                                                               Diversified Energy Company                                                                                                            
 b)  LEI                                                                529900XTQ3OKXR6P0H74                                                                                                                  
 4   Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted        
 a)  Description of the financial instrument, type of instrument        Performance stock units that convert into Common Stock                                                                                
     Identification code                                                GB00BQHP5P93                                                                                                                          
 b)  Nature of the transaction                                          Vesting of performance stock units under the Company's equity incentive plan                                                          
 c)  Price(s) and volumes(s)                                            Price(s)                                                           Volume(s)                                                          
                                                                        $Nil                                                               46,548                                                             
 d)  Aggregated information                                             N/A single transaction                                                                                                                
     Aggregated volume                                                  N/A single transaction                                                                                                                
     Price                                                              N/A single transaction                                                                                                                
 e)  Date of the transaction                                            March 16, 2026                                                                                                                        
 f)  Place of the transaction                                           Outside a trading venue (XOFF)                                                                                                        



 1   Details of the person discharging managerial responsibilities / person closely associated                                                                                                                
 a)  Name                                                               Bradley Gray                                                                                                                          
 2   Reason for the notification                                                                                                                                                                              
 a)  Position/status                                                    President and Chief Financial Officer                                                                                                 
 b)  Initial notification/Amendment                                     Initial notification                                                                                                                  
 3   Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor                                                                                            
 a)  Name                                                               Diversified Energy Company                                                                                                            
 b)  LEI                                                                529900XTQ3OKXR6P0H74                                                                                                                  
 4   Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted        
 a)  Description of the financial instrument, type of instrument        Performance stock units and restricted stock units that convert into Common Stock                                                     
     Identification code                                                GB00BQHP5P93                                                                                                                          
 b)  Nature of the transaction                                          Vesting of performance stock units and restricted stock units under the Company's equity incentive plan                               
 c)  Price(s) and volumes(s)                                            Price(s)                                                           Volume(s)                                                          
                                                                        $Nil                                                               35,659                                                             
 d)  Aggregated information                                             N/A single transaction                                                                                                                
     Aggregated volume                                                  N/A single transaction                                                                                                                
     Price                                                              N/A single transaction                                                                                                                
 e)  Date of the transaction                                            March 16, 2026                                                                                                                        
 f)  Place of the transaction                                           Outside a trading venue (XOFF)                                                                                                        



 1   Details of the person discharging managerial responsibilities / person closely associated                                                                                                                
 a)  Name                                                               Benjamin Sullivan                                                                                                                     
 2   Reason for the notification                                                                                                                                                                              
 a)  Position/status                                                    Senior Executive Vice President, Chief Legal & Risk Officer and Corporate Secretary                                                   
 b)  Initial notification/Amendment                                     Initial notification                                                                                                                  
 3   Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor                                                                                            
 a)  Name                                                               Diversified Energy Company                                                                                                            
 b)  LEI                                                                529900XTQ3OKXR6P0H74                                                                                                                  
 4   Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted        
 a)  Description of the financial instrument, type of instrument        Performance stock units and restricted stock units that convert into Common Stock                                                     
     Identification code                                                GB00BQHP5P93                                                                                                                          
 b)  Nature of the transaction                                          Vesting of performance stock units and restricted stock units under the Company's equity incentive plan                               
 c)  Price(s) and volumes(s)                                            Price(s)                                                           Volume(s)                                                          
                                                                        $Nil                                                               26,518                                                             
 d)  Aggregated information                                             N/A single transaction                                                                                                                
     Aggregated volume                                                  N/A single transaction                                                                                                                
     Price                                                              N/A single transaction                                                                                                                
 e)  Date of the transaction                                            March 16,2026                                                                                                                         
 f)  Place of the transaction                                           Outside a trading venue (XOFF)