Diversified Energy Company PLC

Major Shareholding Notification • Sep 25, 2025

National Storage Mechanism | Additional information

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached ii:			DIVERSIFIED ENERGY PLC
1b. Please indicate if the issuer is a non-UK issuer (please mark with an “X” if appropriate)
Non-UK issuer
2. Reason for the notification (please mark the appropriate box or boxes with an “X”)
An acquisition or disposal of voting rights
An acquisition or disposal of financial instruments
An event changing the breakdown of voting rights
Other (please specify) iii:
3. Details of person subject to the notification obligation iv
Name			EIG ASSET MANAGEMENT LLC
City and country of registered office (if applicable)			WASHINGTON D.C., U.S.A.
4. Full name of shareholder(s) (if different from 3.) v
Name
City and country of registered office (if applicable)
5. Date on which the threshold was crossed or reached vi:			18 September 2025
6. Date on which issuer notified (DD/MM/YYYY):			24/09/2025
7. Total positions of person(s) subject to the notification obligation
	% of voting rights attached to shares (total of 8. A)	% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)		Total of both in % (8.A + 8.B)
Resulting situation on the date on which threshold was crossed or reached	9,601,585			12.40
Position of previous notification (if applicable)	14,330,718			18.50

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached viii
A: Voting rights attached to shares
Class/type of shares ISIN code (if possible)		Number of voting rights ix
Direct (DTR5.1)		Indirect (DTR5.2.1)			Direct (DTR5.1)
GB00BQHP5P93				9,601,585
SUBTOTAL 8. A
B 1: Financial Instruments according to DTR5.3.1R (1) (a)
Type of financial instrument		Expiration date x	Exercise/ Conversion Period xi
			SUBTOTAL 8. B 1
B 2: Financial Instruments with similar economic effect according to DTR5.3.1R (1) (b)
Type of financial instrument	Expiration date x		Exercise/ Conversion Period xi		Physical or cash Settlement xii
					SUBTOTAL 8.B.2

9. Information in relation to the person subject to the notification obligation (please mark the applicable box with an “X”)
Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer xiii
Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entity (please add additional rows as necessary) xiv					X
Name xv	% of voting rights if it equals or is higher than the notifiable threshold		% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
EIG Asset Management LLC (Parent)
EIG Redwood Co-Investment, L.P. (Chain 1)	0.541	%		0.541
EIG Redwood XV Blocker Agent (Redwood), Inc. (Chain 2)	0.469	%		0.469
EIG Holdings Carry Splitter (Redwood), L.P. (Chain 3)	1.674	%		1.674
EIG Energy Fund XV, L.P. (Chain 4)	1.227	%		1.227
EIG Energy Fund XV-A, L.P. (Chain 5)	0.838	%		0.838
EIG Energy Fund XVI, L.P. (Chain 6)	4.517	%		4.517
EIG Energy Fund XVI-E, L.P. (Chain 7)	0.073	%		0.073
EIG Energy Fund XVI Holding Splitter (Fourpoint), L.P. (Chain 8)	2.064	%		2.064
EIG Energy Fund XV Blocker Series C (Fourpoint) LLC (Chain 9)	0.997	%		0.997
10. In case of proxy voting, please identify:
Name of the proxy holder
The number and % of voting rights held
The date until which the voting rights will be held
11. Additional information xvi
The information in this Form has been completed using an issued share capital of 77,434,079 shares in the capital of the Company, as announced by the Company on 23 September 2025

Place of completion	London
Date of completion	26 September 2025