The following amendment has been made to the 'Statement re share price movement and possible offers for Deltic' announcement released on 22 April 2026 at 16.10 under RNS No 5422B.

The website address for Deltic has been corrected to www.delticenergy.com.

All other details remain unchanged. The full amended text is shown below.

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION.

This is an announcement UNDER RULE 2.4 OF THE CITY CODE ON TAKEOVERS AND MERGERS (THE "TAKEOVER CODE" or the "CoDE") of a possible offer and is not an announcement of a firm intention to make an offer under Rule 2.7 of the TAKEOVER Code. there can be no certainty that an offer will be made, nor as to the terms on WHICH any offer will be made.

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION AS STIPULATED UNDER THE UK MARKET ABUSE REGULATIONS ("MAR").

22 April 2026

Deltic Energy Plc ("Deltic" or "the Company")

Statement re share price movement and possible offers for Deltic

The Board of Deltic (the "Board") notes the recent movement in the Company's share price.

The Company confirms that it is currently in discussions with three parties, being (i) Capricorn Energy PLC ("Capricorn Energy"); (ii) Petrogas International E&P Coöperatief U.A. ("Petrogas"), a subsidiary of Mohammed Al Barwani LLC; and (iii) Blue Concept Hld AS ("Blue Concept"), a private Norwegian company (each a "Potential Offeror"), which have each separately approached the Company regarding possible cash offers for the entire issued and to be issued ordinary share capital of the Company.

There can be no certainty that any of the above discussions will result in an offer being made for the Company, nor as to the terms on which any such offer may be made.

In accordance with Rule 2.6(a) of the Takeover Code, each of the Potential Offerors is required to announce either a firm intention to make an offer for Deltic (pursuant to Rule 2.7 of the Takeover Code) or that it does not intend to make an offer (in which case the announcement will be treated as a statement to which Rule 2.8 of the Takeover Code applies) by 5:00pm on 20 May 2026 (being the 28th day following the date of this announcement), unless the Panel on Takeovers and Mergers (the "Takeover Panel") has consented to an extension of this deadline in accordance with Rule 2.6(c) of the Takeover Code.

The Deltic Directors will carefully consider proposals from the Potential Offerors in conjunction with the Company's advisers.

As a consequence of this announcement, an "Offer Period" has now commenced in respect of the Company in accordance with the rules of the Takeover Code and the dealing disclosure requirements listed below will apply.

Allenby Capital Limited is acting as financial adviser to the Company in relation to the Takeover Code.

A further announcement will be made as and when appropriate.

This announcement is being made without the approval of the Potential Offerors.

**ENDS**

For further information please contact the following:

Disclosure requirements of the Takeover Code (the "Code")

Under Rule 8.3(a) of the Code, any person who is interested in 1% or more of any class of relevant securities of an offeree company or of any securities exchange offeror (being any offeror other than an offeror in respect of which it has been announced that its offer is, or is likely to be, solely in cash) must make an Opening Position Disclosure following the commencement of the offer period and, if later, following the announcement in which any securities exchange offeror is first identified. An Opening Position Disclosure must contain details of the person's interests and short positions in, and rights to subscribe for, any relevant securities of each of (i) the offeree company and (ii) any securities exchange offeror(s). An Opening Position Disclosure by a person to whom Rule 8.3(a) applies must be made by no later than 3.30 pm (London time) on the 10th business day following the commencement of the offer period and, if appropriate, by no later than 3.30 pm (London time) on the 10th business day following the announcement in which any securities exchange offeror is first identified. Relevant persons who deal in the relevant securities of the offeree company or of a securities exchange offeror prior to the deadline for making an Opening Position Disclosure must instead make a Dealing Disclosure.

Under Rule 8.3(b) of the Code, any person who is, or becomes, interested in 1% or more of any class of relevant securities of the offeree company or of any securities exchange offeror must make a Dealing Disclosure if the person deals in any relevant securities of the offeree company or of any securities exchange offeror. A Dealing Disclosure must contain details of the dealing concerned and of the person's interests and short positions in, and rights to subscribe for, any relevant securities of each of (i) the offeree company and (ii) any securities exchange offeror(s), save to the extent that these details have previously been disclosed under Rule 8. A Dealing Disclosure by a person to whom Rule 8.3(b) applies must be made by no later than 3.30 pm (London time) on the business day following the date of the relevant dealing.

If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire or control an interest in relevant securities of an offeree company or a securities exchange offeror, they will be deemed to be a single person for the purpose of Rule 8.3.

Opening Position Disclosures must also be made by the offeree company and by any offeror and Dealing Disclosures must also be made by the offeree company, by any offeror and by any persons acting in concert with any of them (see Rules 8.1, 8.2 and 8.4).

Details of the offeree and offeror companies in respect of whose relevant securities Opening Position Disclosures and Dealing Disclosures must be made can be found in the Disclosure Table on the Takeover Panel's website at www.thetakeoverpanel.org.uk, including details of the number of relevant securities in issue, when the offer period commenced and when any offeror was first identified. You should contact the Panel's Market Surveillance Unit on +44 (0)20 7638 0129 if you are in any doubt as to whether you are required to make an Opening Position Disclosure or a Dealing Disclosure.

Rule 2.9 disclosure

As at the date of this announcement, Deltic has in issue 93,096,600 ordinary shares of 10p each ("Ordinary Shares"), with one voting right per Ordinary Share. No shares are held in treasury. The International Securities Identification Number (ISIN) of Deltic's Ordinary Shares is GB00BNTY2N01 and the LEI number is 213800TS8K1D27AFP275.

Additional information

This announcement is not intended to, and does not, constitute or form part of any offer, invitation or the solicitation of an offer to purchase, otherwise acquire, subscribe for, sell or otherwise dispose of, any securities, or the solicitation of any vote or approval in any jurisdiction, pursuant to this announcement or otherwise. Any offer, if made, will be made solely by certain offer documentation which will contain the full terms and conditions of any offer, including details of how it may be accepted.

The release, publication or distribution of this announcement in certain jurisdictions may be restricted by law. Persons who are not resident in the United Kingdom or who are subject to other jurisdictions should inform themselves of, and observe, any applicable requirements.

Allenby Capital Limited ("Allenby Capital"), is authorised and regulated by the Financial Conduct Authority in the United Kingdom. Allenby Capital is acting as financial adviser and nominated adviser exclusively for Deltic and no one else in connection with the matters set out in this announcement and will not regard any other person as its client in relation to the matters set out in this announcement and will not be responsible to anyone other than Deltic for providing the protections afforded to clients of Allenby Capital or its affiliates, or for providing advice in relation to the contents of this announcement or any other matter referred to herein.  Neither Allenby Capital, nor any of its affiliates, owes or accepts any duty, liability or responsibility whatsoever (whether direct or indirect, whether in contract, in tort, under statute or otherwise) to any person who is not a client of Allenby Capital in connection with this announcement, any statement contained herein or otherwise.

Publication on a website

In accordance with Rule 26.1 of the Code, a copy of this announcement will be available at https://www.delticenergy.com. The content of the website referred to in this announcement is not incorporated into and does not form part of this announcement.

UK MAR

The information contained within this announcement is considered by the Company to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2000. Upon the publication of this announcement via a Regulatory Information Service, this inside information will be considered to be in the public domain.