Notice of Results.

Diversified Energy Announces Timing of Second Quarter Results

Diversified Energy Company PLC (LSE: DEC, NYSE:DEC) (“Diversified” or the "Company") is pleased to announce that the Company plans to publish its Results for the Second Quarter and six months ended June 30, 2025 (the “Interim Results”) on Monday, August 11, 2025. The Company will host a conference call that day at 1:00 PM BST (8:00 AM EDT) to discuss the Results and will make an audio replay of the event available shortly thereafter.

Conference Details

Prior to the event, Diversified will publish the Company’s 2025 Interim Report on its website at https://ir.div.energy/financial-info and has also made available a supplementary 2025 Interim Results Presentation at https://ir.div.energy/presentations.

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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 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.