Transaction in Own Shares

Rhea-AI Summary

Diversified Energy Company PLC (NYSE:DEC) has executed a share buyback transaction as part of its program announced on March 20, 2025. The company purchased 306 Ordinary Shares at a volume-weighted average price of $14.35 per share through Mizuho Securities USA LLC.

The shares were acquired across multiple trading venues, with 200 shares purchased on ARCX and 106 shares on XNAS. Following the cancellation of these shares, Diversified will have 77,935,467 Ordinary Shares in issue. The company confirms that no Ordinary Shares are held in treasury.

Positive

• Share buyback demonstrates company's commitment to returning value to shareholders
• Company maintains strong market presence across multiple trading venues
• Clear transparency in reporting share purchases and pricing details

Negative

• Relatively small number of shares (306) purchased in this transaction indicates limited impact on share count
• No price discount achieved in the buyback as all shares were purchased at the same price

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 306 Ordinary Shares of 20 Pence each in the capital of the Company (the "Shares") in the market at a volume-weighted average price of $14.3500 per Share through Mizuho Securities USA LLC (MSUSA). The Shares acquired will, in due course, be cancelled.

Aggregated Information

Date of Purchase:	04 August 2025
Aggregate Number of Ordinary Shares Purchased:	306
Lowest Price Paid per Share (USD):	14.35
Highest Price Paid per Share (USD):	14.35
Volume-Weighted Average Price Paid per Share (USD):	14.3500

Following the cancellation of Shares, Diversified will have 77,935,467 Ordinary Shares of 20 Pence each in issue and no Ordinary Shares are held in treasury. This figure of 77,935,467 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:	04 August 2025
Investment firm:	Mizuho Securities USA LLC

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
200	$14.3500		$14.35		$14.35	ARCX
106	$14.3500		$14.35		$14.35	XNAS
Trading venue	Currency
NYSE	USD		$14.3500		306

For further information, please contact:

Diversified Energy Company PLC	+1 973 856 2757
Doug Kris	dkris@dgoc.com
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.

FAQ

What is the size and price of DEC's latest share buyback transaction?

DEC purchased 306 Ordinary Shares at a volume-weighted average price of $14.35 per share on August 4, 2025.

How many shares will DEC have outstanding after this buyback?

Following the cancellation of the purchased shares, DEC will have 77,935,467 Ordinary Shares in issue.

When did DEC announce its share buyback program?

DEC announced its share buyback program on March 20, 2025.

Which investment firm executed the share buyback for DEC?

Mizuho Securities USA LLC (MSUSA) executed the share buyback transactions for DEC.

On which exchanges were DEC shares purchased during this buyback?

The shares were purchased on two exchanges: 200 shares on ARCX and 106 shares on XNAS.