Transaction in Own Shares

Shareholders may use the post-cancellation share count to assess FCA interest-notification requirements.

Rhea-AI Summary

Diversified Energy (DEC) purchased 80,000 common shares on September 24, 2026, under its existing share buyback program. The shares were bought through Mizuho Securities USA at a volume-weighted average price of $13.9561 each. Purchase prices ranged from $13.80 to $14.015 per share.

The shares are due to be cancelled. Following cancellation, Diversified will have 70,699,231 common shares in issue and none held in treasury. The buyback program was announced on March 20, 2025.

Key Figures

Shares repurchased: 80,000 shares Volume-weighted average purchase price: $13.9561 per share Shares in issue after cancellation: 70,699,231 shares

Shares repurchased

80,000 shares

Purchased on September 24, 2026 under the existing buyback program

Volume-weighted average purchase price

$13.9561 per share

September 24, 2026 share purchases

Shares in issue after cancellation

70,699,231 shares

Company-reported figure following cancellation of the purchased shares

Key Terms

volume-weighted average price, par value

2 terms

volume-weighted average price financial

"at a volume-weighted average price of $13.9561 per Share"

Volume-weighted average price (VWAP) is the average price of a stock over a specific time period where each trade is weighted by the number of shares traded, so larger trades influence the average more than small ones. Investors and traders use VWAP as a reference point to judge whether trades are happening at relatively good or poor prices—like checking the average price paid for an item at a market where bulk purchases count more than single-item buys.

par value financial

"common stock, par value $0.01 per share"

Par value is the fixed amount printed on a bond or stock that represents its original value when issued. It’s like the face value of a coin or bill—what the issuer promises to pay back or the starting price of a stock—though it often doesn’t change with market prices. It matters because it helps determine certain financial details, like how much the company will pay back at maturity.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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 80,000 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 $13.9561 per Share through Mizuho Securities USA LLC (MSUSA). The Shares acquired will, in due course, be cancelled.

Aggregated Information

Date of Purchase:	September 24, 2026
Aggregate Number of Shares Purchased:	80,000
Lowest Price Paid per Share (USD):	$13.80
Highest Price Paid per Share (USD):	$14.015
Volume-Weighted Average Price Paid per Share (USD):	$13.9561

Following the cancellation of Shares, Diversified will have 70,699,231 shares of common stock, in issue and no shares of common stock is held in treasury. This figure of 70,699,231 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
4728	13.9652	$14.01		$13.84	ARCX
6007	13.9847	$14.01		$13.91	ASPN
500	14.0100	$14.01		$14.01	BAML
215	13.9700	$14.01		$13.90	BATS
1000	13.9527	$14.01		$13.82	BATY
300	13.9667	$14.00		$13.91	EDGA
3666	13.9847	$14.01		$13.82	EDGX
50128	13.9417	$14.02		$13.80	IEXG
741	13.9744	$14.01		$13.89	JPMX
36	13.9900	$13.99		$13.99	MEMX
500	13.9960	$14.00		$13.98	SGMT
2236	13.9833	$14.01		$13.84	UBSA
800	13.9538	$14.01		$13.84	XBOS
100	13.8200	$13.82		$13.82	XCIS
5366	13.9784	$14.01		$13.84	XNAS
3677	13.9796	$14.01		$13.84	XNYS
Trading venue	Currency
NYSE	USD	$13.9561		80,000

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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

When and at what price did Diversified Energy buy back shares?

Diversified Energy bought 80,000 shares on September 24, 2026, at a volume-weighted average price of $13.9561 per share. The purchases were made through Mizuho Securities USA.

What share count can Diversified Energy shareholders use for FCA interest notifications?

Following cancellation, shareholders may use 70,699,231 common shares as the denominator when determining whether they must notify an interest in Diversified Energy, or a change to that interest, under the FCA's Disclosure Guidance and Transparency Rules.