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Block Listing Six Monthly Return

By Oslo Stock Exchange

3 November 2026

Gulf Keystone Petroleum Ltd. (LSE & OSE: GKP) ("Gulf Keystone", "GKP" or "the Company")

Block Listing Six Monthly Return

(Note: Italicised terms have the same meaning as given in the Listing Rules.)

+---------------------------------+-------+--------------+-----+-------------+ | Name of applicant: | | Gulf | | | | | | Keystone | | | | | | Petroleum | | | | | | Limited | | | +---------------------------------+-------+--------------+-----+-------------+ | Name of scheme: | | Deferred | | | | | | Bonus | | | | | | Plan/Long | | | | | | Term | | | | | | Incentive | | | | | | Plan | | | +---------------------------------+-------+--------------+-----+-------------+ | Period of return: | From: | 3 May 2026 | To: | 2 November | | | | | | 2026 | +---------------------------------+-------+--------------+-----+-------------+ | Balance of unallotted | | 251,847 | | | | securities under scheme(s) from | | common | | | | previous return: | | shares of $1 | | | | | | each | | | +---------------------------------+-------+--------------+-----+-------------+ | Plus: The amount by which the | | - | | | | block scheme(s) has been | | | | | | increased since the date of the | | | | | | last return (if any increase | | | | | | has been applied for): | | | | | +---------------------------------+-------+--------------+-----+-------------+ | Less: Number | | - | | | | of securities issued/allotted | | | | | | under scheme(s) during period | | | | | | (see LR3.5.7G): | | | | | +---------------------------------+-------+--------------+-----+-------------+ | Equals: Balance under | | 251,847 | | | | scheme(s) not yet | | common | | | | issued/allotted at end of | | shares of $1 | | | | period: | | each | | | +---------------------------------+-------+--------------+-----+-------------+

+------------------------------+---------------------------------------------+ | Name of contact: | Alasdair Robinson, Chief Legal Officer & | | | Company Secretary | +------------------------------+---------------------------------------------+ | Telephone number of contact: | +44 (0) 20 7514 1400 | +------------------------------+---------------------------------------------+

Enquiries:

+----------------------------------------------+------------------------------+ | Gulf Keystone: | +44 (0) 20 7514 1400

| +----------------------------------------------+------------------------------+ | Aaron Clark, Head of Investor Relations | aclark@gulfkeystone.com

| | & Corporate Communications |

| | |

| +----------------------------------------------+------------------------------+

or visit: www.gulfkeystone.com (https://www.gulfkeystone.com/)

https://newsweb.oslobors.no/message/685513

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