A quick and easy share dealing service to either sell or buy more shares is provided by Equiniti.

An online and telephone facility is available providing Harbour Energy plc shareholders with an easy-to-access and simple-to-use service.

There is no need to pre-register and there are no complicated forms to fill in. The online and telephone dealing service allows you to trade "real time" at a known price which will be given to you at the time you give your instruction.

To deal online or by telephone all you need is your surname, postcode, date of birth and Shareholder Reference, which can be found on a recent share certificate, statement or tax voucher produced by Equiniti*. Please have the appropriate documents to hand when you log on or call, as this information will be needed before you can buy or sell shares.

For further information on this service, including details of commission rates and charges, please contact:

Online dealing: www.shareview.co.uk

Telephone dealing: +44 (0) 3456 037 037

Online and telephone dealing services are available for you to buy or sell Harbour Energy plc shares, at up-to-the-minute share prices. These services are available at www.shareview.co.uk or by calling +44 (0) 3456 037 037. Please use the country code when calling from outside the UK. Lines are open from 8.00am to 4.30pm (UK time), Monday to Friday (excluding public holidays in England and Wales).

Full terms, conditions and risks apply and are available on request or by visiting: www.shareview.co.uk.

*Should you not be able to locate your SRN, please contact Equiniti (tel: +44 (0) 371 384 2030 / Email: [email protected].

This is not a recommendation to buy, sell or hold shares in Harbour Energy plc. Please note that share values may go down as well as up, which may result in you receiving less than what you originally invested. If you are unsure of what action to take, please contact a suitably qualified professional adviser. In so far as this statement constitutes a financial promotion for the share dealing service, it has been approved by Equiniti Financial Services for the purpose of Section 21 (2)(b) of the Financial Services and Markets Act 2000 only. Where this has been received in a country where the provision of such a service would be contrary to local laws or regulations, this should be treated as information only.

Shareview is part of Equiniti Group that is fully authorised and regulated by the FCA. More information is available at www.shareview.co.uk.