REG-Transaction in Own Shares

Diversified Energy CoAnnouncement

09/01/2026 07:00

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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 144,395 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 $14.0275 per Share through Mizuho Securities USA LLC (MSUSA). The
Shares acquired will, in due course, be cancelled.

Aggregated Information

 Date of Purchase:                                    January 08, 2026  
 Aggregate Number of Shares Purchased:                144,395           
 Lowest Price Paid per Share (USD):                   13.32             
 Highest Price Paid per Share (USD):                  14.30             
 Volume-Weighted Average Price Paid per Share (USD):  14.0275           

Following the cancellation of Shares, Diversified will have 78,415,731 shares
of common stock, in issue and no shares of common stock is held in treasury.
This figure of 78,415,731 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 program.

Schedule of Purchases

 Aggregate number of ordinary shares acquired  Daily volume weighted average price paid  Daily highest price paid per share  Daily lowest price per share  Trading Venue  
 4998                                          13.9124                                   $14.30                              $13.32                        ARCX           
 9629                                          13.9303                                   $14.30                              $13.56                        ASPN           
 8594                                          14.0379                                   $14.30                              $13.58                        BAML           
 774                                           14.2920                                   $14.30                              $14.26                        BARX           
 3172                                          13.9906                                   $14.30                              $13.53                        BATS           
 2750                                          14.0831                                   $14.30                              $13.62                        BATY           
 1433                                          14.2600                                   $14.26                              $14.26                        BIDS           
 1462                                          13.9050                                   $14.25                              $13.51                        EDGA           
 4628                                          13.9864                                   $14.30                              $13.56                        EDGX           
 100                                           14.1800                                   $14.18                              $14.18                        EPRL           
 45733                                         13.9636                                   $14.30                              $13.52                        IEXG           
 7939                                          14.0268                                   $14.30                              $13.56                        JPMX           
 900                                           14.2733                                   $14.30                              $14.26                        LEVL           
 117                                           14.0375                                   $14.20                              $13.88                        MEMX           
 600                                           14.3000                                   $14.30                              $14.30                        MSPL           
 1750                                          13.9504                                   $14.30                              $13.65                        SGMT           
 16875                                         13.9479                                   $14.30                              $13.55                        UBSA           
 3552                                          14.2733                                   $14.30                              $14.26                        VFMI           
 1367                                          14.0226                                   $14.25                              $13.65                        XBOS           
 97                                            14.1150                                   $14.20                              $14.03                        XCHI           
 200                                           13.8400                                   $14.20                              $13.66                        XCIS           
 14277                                         13.9872                                   $14.30                              $13.51                        XNAS           
 13382                                         13.9226                                   $14.30                              $13.56                        XNYS           
 66                                            14.1267                                   $14.24                              $14.06                        XPSX           
 Trading venue                                 Currency                                                                                                                   
 NYSE                                          USD                                       $14.0275                            144,395                                      

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