Admissions of Shares and Total Voting Rights

February 24, 2025

Diversified Energy Company plc

("Diversified" or the "Company")

Admission of Shares and Total Voting Rights

Diversified Energy Company PLC (LSE: DEC; NYSE: DEC) ("Diversified" or the "Company"), announces that, further to the Company's announcements on 20 February 2025 in relation to the pricing of 8,500,000 new ordinary shares in the capital of the Company (the "Shares") and the publication of a prospectus approved by the Financial Conduct Authority (the "FCA") (the "Prospectus"), admission of the Shares to listing on the equity shares (commercial companies) category of the Official List of the FCA and to trading on the main market of the London Stock Exchange plc ("Admission") became effective at 08:00 a.m. (London time) on 24 February 2025.

Total Voting Rights

For the purposes of the FCA's Disclosure Guidance and Transparency Rules, following Admission, the total number of ordinary shares of 20p each in the capital of the Company in issue as at 24 February 2025 is 59,795,942 with each ordinary share carrying the right to one vote. There are no ordinary shares held in treasury and therefore the total number of voting rights in the Company as at 24 February 2025 is 59,795,942.

The above figure may be used by shareholders in the Company 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 share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

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About Diversified

Diversified is a leading publicly traded energy company focused on natural gas and liquids production, transport, marketing, and well retirement. Through our unique 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.

Forward-Looking Statements

This press release includes forward-looking statements. Forward-looking statements are sometimes identified by the use of forward-looking terminology such as "believe", "expects", "targets", "may", "will", "could", "should", "shall", "risk", "intends", "estimates", "aims", "plans", "predicts", "continues", "assumes", "projects", "positioned" or "anticipates" or the negative thereof, other variations thereon or comparable terminology. These forward-looking statements include all matters that are not historical facts. They appear in a number of places throughout this announcement and include statements regarding the intentions, beliefs or current expectations of management or the Company concerning, among other things, expectations regarding the completion of the proposed securities offering. These forward-looking statements involve known and unknown risks and uncertainties, many of which are beyond the Company's control and all of which are based on management's current beliefs and expectations about future events, including market conditions, failure of customary closing conditions and the risk factors and other matters set forth in the Company's filings with the SEC and other important factors that could cause actual results to differ materially from those projected.