Dolphin Drilling AS: Last day of the subscription period in the subsequent offering

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART DIRECTLY OR INDIRECTLY, IN AUSTRALIA, CANADA, JAPAN, HONG KONG, SOUTH AFRICA OR THE UNITED STATES OR ANY OTHER JURISDICTION IN WHICH THE RELEASE, PUBLICATION OR DISTRIBUTION WOULD BE UNLAWFUL. THIS ANNOUNCEMENT DOES NOT CONSTITUTE AN OFFER OF ANY OF THE SECURITIES DESCRIBED HEREIN.

Oslo, 13 September 2023

Reference is made to the stock exchange announcement published by Dolphin Drilling AS (the "Company") (ticker code: DDRIL) on 30 August 2023 regarding the commencement of the subscription period (the "Subscription Period") in the subsequent offering (the "Subsequent Offering") of up to 11,100,000 new shares in the Company (the "Offer Shares") at a subscription price of NOK 7.50 per share and the registration of a national prospectus dated 28 August 2023 (the "Prospectus").

The Subscription Period will expire today, 13 September 2023, at 16:30 hours (CEST).

Correctly completed subscription forms must be received by one of the Managers (as defined below) or, in the case of online subscriptions, be registered by the expiry of the Subscription Period. Subscription rights that are not used to subscribe for Offer Shares in the Subsequent Offering before the expiry of the Subscription Period will have no value and will lapse without compensation to the holder.

Further information about the Subsequent Offering and the subscription procedures is included in the Prospectus, which is made available electronically at

• www.arctic.com/secno/en/transactions
• https://securities.clarksons.com/Investment-Banking/Corporate-Finance/Transactions
• www.dnb.no/emisjoner
• https://transaksjoner.fearnleysecurities.com
• www.paretosec.com/updates/transactions

Advisors:

Arctic Securities AS, Clarksons Securities AS, DNB Markets, a part of DNB Bank ASA, Fearnley Securities AS and Pareto Securities AS are acting as managers (the "Managers") in the Subsequent Offering.

Advokatfirmaet Schjødt AS is acting as legal advisor to the Company.

Disclosure regulation:

This information is subject to a duty of disclosure pursuant to the Company's continuing obligations as a company listed on Euronext Growth Oslo and the EU Market Abuse Regulation.

For further information, please contact:

Ingolf Gillesdal, email: ingolf.gillesdal@dolphindrilling.com, tel: +47 920 45 320

Dolphin Drilling | www.dolphindrilling.com

Dolphin Drilling is a leading harsh environment drilling contractor for the offshore oil and gas industry. Dolphin Drilling owns a fleet of three high-technical standard 4th and 5th generation enhanced Aker H3 units, Borgland Dolphin, Blackford Dolphin, and Bideford Dolphin, operated by an experienced team with a strong operational track record. The company has offshore and onshore employees, and onshore locations in Norway, Scotland, Brazil, and Nigeria.

Important notices:

This announcement is not and does not form a part of any offer to sell, or a solicitation of an offer to purchase, any securities of the Company. The distribution of this announcement and other information may be restricted by law in certain jurisdictions. Copies of this announcement are not being made and may not be distributed or sent into any jurisdiction in which such distribution would be unlawful or would require registration or other measures. Persons into whose possession this announcement or such other information should come are required to inform themselves about and to observe any such restrictions.

The securities referred to in this announcement have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), and accordingly may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and in accordance with applicable U.S. state securities laws. The Company does not intend to register any part of the offering or their securities in the United States or to conduct a public offering of securities in the United States. Any sale in the United States of the securities mentioned in this announcement will be made solely to "qualified institutional buyers" as defined in Rule 144A under the Securities Act.

In any EEA Member State, this communication is only addressed to and is only directed at qualified investors in that Member State within the meaning of the Prospectus Regulation, i.e., only to investors who can receive the offer without an approved prospectus in such EEA Member State. The expression "Prospectus Regulation" means Regulation 2017/1129 as amended together with any applicable implementing measures in any Member State. This communication is only being distributed to and is only directed at persons in the United Kingdom that are (i) investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the "Order") or (ii) high net worth entities, and other persons to whom this announcement may lawfully be communicated, falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to as "relevant persons").

This communication must not be acted on or relied on by persons who are not relevant persons. Any investment or investment activity to which this communication relates is available only for relevant persons and will be engaged in only with relevant persons. Persons distributing this communication must satisfy themselves that it is lawful to do so.

The information contained in this announcement speaks only as at its date, and is subject to change without notice. The Company does not undertake any obligation to review, update, confirm, or to release publicly any revisions to any of the content of this announcement.

Neither of the Company, the Managers nor any of their respective affiliates makes any representation as to the accuracy or completeness of this announcement and none of them accepts any responsibility for the contents of this announcement or any matters referred to herein. This announcement is for information purposes only and is not to be relied upon in substitution for the exercise of independent judgment. It is not intended as investment advice and under no circumstances is it to be used or considered as an offer to sell, or a solicitation of an offer to buy any securities or a recommendation to buy or sell any securities in the Company. Neither the Company, the Managers nor any of their respective affiliates accepts any liability arising from the use of this announcement.