Transaction in Own Shares

Birmingham, AL (USA)


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 80,914 Ordinary Shares of 20 Pence each in the capital of the Company (the "Shares") in the market at a volume-weighted average price of $14.1864 per Share through Mizuho Securities USA LLC (MSUSA). The Shares acquired will, in due course, be cancelled.

Aggregated Information

 Date of Purchase: 19 September 2025
 Aggregate Number of Ordinary Shares Purchased: 80,914
 Lowest Price Paid per Share (USD): 14.04
 Highest Price Paid per Share (USD): 14.34
 Volume-Weighted Average Price Paid per Share (USD): 14.1864


Following the cancellation of Shares, Diversified will have 77,692,725 Ordinary Shares of 20 Pence each in issue and no Ordinary Shares are held in treasury. This figure of 77,692,725 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: 19 September 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
 10,679 $14.2167 $14.32 $14.04 ARCX
 1,552 $14.1486 $14.33 $14.04 ASPN
 1,183 $14.1668 $14.33 $14.09 BAML
 2,113 $14.2195 $14.33 $14.11 BATS
 400 $14.2600 $14.26 $14.26 BATY
 300 $14.2400 $14.32 $14.14 EDGA
 4,247 $14.2190 $14.30 $14.08 EDGX
 400 $14.2800 $14.28 $14.28 HRTF
 382 $14.2867 $14.29 $14.28 ICBX
 29,825 $14.2212 $14.34 $14.04 IEXG
 873 $14.1850 $14.28 $14.07 JPMX
 5,353 $14.1138 $14.29 $14.07 JSJX
 300 $14.2600 $14.26 $14.26 KNLI
 300 $14.2100 $14.21 $14.21 LEVL
 5 $14.1100 $14.11 $14.11 MEMX
 500 $14.2600 $14.26 $14.26 MSPL
 1,059 $14.1443 $14.33 $14.07 SGMT
 1,344 $14.1589 $14.33 $14.04 UBSA
 400 $14.1920 $14.33 $14.12 XBOS
 10,957 $14.1757 $14.33 $14.05 XNAS
 8,742 $14.1548 $14.28 $14.07 XNYS
 Trading venue Currency   
 NYSE USD $14.1864 80,914 

 
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.


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