Riverstone Energy Ld - Compulsory Redemption of Shares

LEI: 213800HAZOW1AWRSZR47

23 October 2025

Riverstone Energy Limited (the "Company" or "REL")

Compulsory Redemption of Shares

Further to its announcement of 8 October 2025 confirming its intention to return approximately £190 million to Shareholders by way of a pro rata compulsory redemption of ordinary shares (the "Shares"), the Company today confirms that it has now redeemed 17,256,964 Shares (representing approximately 70 per cent. of the Company's issued share capital) for cancellation at a Redemption Price of £11.01 per Share. The redeemed Shares were disabled in CREST after close of business on 22 October 2025 (the ("Redemption Date"), and the ISIN for such Shares expired at the same time.

Fractions of Shares produced by the applicable redemption ratio have not been redeemed and therefore the number of Shares redeemed in respect of each Shareholder has been rounded down to the nearest whole number of Shares.

Payments of redemption monies are expected to be effected either through CREST (in the case of Shares held in uncertificated form) or by cheque (in the case of Shares held in certificated form) in pounds Sterling by 5 November 2025. Any certificates currently in circulation will be superseded by a new certificate which will be distributed to Shareholders.

The new ISIN, GG00BSNRFW06, in respect of the remaining Shares which have not been redeemed (the "New ISIN") has been enabled and is available for transactions from and including today's date, 23 October 2025. CREST will automatically transform any open transactions as at the Redemption Date into the New ISIN.

Following the redemption, the Company has 7,334,416 Shares in issue and does not hold any Shares in Treasury. Accordingly, the total number of voting rights in the Company is 7,334,416 and 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.

Shareholders should note that the Board retains absolute discretion as to the extent and timing of any further redemptions, details of which will be announced in due course.

Capitalised terms used but not defined in this announcement will have the same meanings as set out in the Company's circular to Shareholders dated 1 August 2025.

For further details, see www.RiverstoneREL.com.

Neither the contents of Riverstone Energy Limited's website nor the contents of any website accessible from hyperlinks on the websites (or any other website) are incorporated into, or form part of, this announcement.

Media Contacts

For Riverstone Energy Limited: LPRelations@RiverstoneLLC.com

Deutsche Numis - Corporate Broker:

Hugh Jonathan

Matt Goss

+44 (0) 20 7260 1000

Ocorian Administration (Guernsey) Limited - Company Secretary:

Birgitte Horn

OAGLCoSec@ocorian.com