Diversified Energy Company PLC

Share Issue/Capital Change • May 8, 2025

National Storage Mechanism | Additional information

DIVERSIFIED ENERGY COMPANY PLC

("Diversified", or the "Company")

DIVERSIFIED ENERGY COMPANY PLC (LSE:DEC, NYSE:DEC) announces that, in accordance with the terms of its share buyback programme announced on 20 March 2025, the Company has purchased 78,427 Ordinary Shares of 20 Pence each in the capital of the Company (the "Shares") in the market at a volume-weighted average price of $12.9117 per Share through Mizuho Securities USA LLC (MSUSA). The Shares acquired will, in due course, be cancelled.

Aggregated Information

Date of Purchase:	7 May 2025
Aggregate Number of Ordinary Shares Purchased:	78,427
Lowest Price Paid per Share (USD):	12.69
Highest Price Paid per Share (USD):	13.0000
Volume-Weighted Average Price Paid per Share (USD):	12.9117

Following the cancellation of Shares, Diversified will have 79,718,862 Ordinary Shares of 20 Pence each in issue and no Ordinary Shares are held in treasury. This figure of 79,718,862 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 programme.

Schedule of Purchases

Shares purchased:	DIVERSIFIED ENERGY COMPANY PLC (ISIN: GB00BQHP5P93)
Dates of purchases:	7 May 2025
Investment firm:	Mizuho Securities USA LLC

Aggregate number of ordinary shares acquired			Daily volume weighted average price paid
8,994			$1,098.5450
710			$154.6900
496			$64.3800
300			$12.8300
520			$51.6600
1,571			$348.2500
1,100			$206.5200
2,251			$541.4650
1,200			$38.3900
400			$25.6400
32,746			$7,545.1750
10			$25.6100
58			$77.7000
136			$12.9800
318			$51.3300
105			$25.7200
500			$12.7895
1,377			$335.2800
1,580			$296.9300
300			$38.9000
11,271			$1,586.9750
12,484			$1,497.1600

**

For further information, please contact:**

Diversified Energy Company PLC	+1 973 856 2757
Doug Kris	[email protected]
Senior Vice President, Investor Relations & Corporate Communications	www.div.energy

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 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.