Director / PDMR Shareholding

21 October 2026

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

Director / PDMR Shareholding

Gulf Keystone announces the following transactions by persons discharging managerial responsibilities ("PDMR") on the London Stock Exchange.

David Thomas, Non-Executive Chair, bought a total of 19,669 common shares in the Company on 21 October 2026 at a volume weighted average price of 203.35p per common share on the London Stock Exchange. Following the transactions, David Thomas owns 19,669 common shares in the Company.

Enquiries:

Gulf Keystone:	[phone]
Aaron Clark, Head of Investor Relations & Corporate Communications	[e-mail]
FTI Consulting	[phone]
Ben Brewerton Nick Hennis	[e-mail]

or visit: www.gulfkeystone.com

Notes to Editors:

Gulf Keystone Petroleum Ltd. (LSE & OSE: GKP) is a leading independent operator and producer in the Kurdistan Region of Iraq. Further information on Gulf Keystone is available on its website www.gulfkeystone.com

This information is subject to the disclosure requirements in Regulation EU 596/2014 (MAR) article 19 number 3 and section 5-12 of the Norwegian Securities Trading Act.

1	Details of the person discharging managerial responsibilities/person closely associated
a)	Name		David Thomas
2	Reason for the notification
a)	Position/status		Non-Executive Chair
b)	Initial notification/Amendment		Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name		Gulf Keystone Petroleum Limited
b)	LEI		213800QTAQOSSTNTPO15
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument Identification code		Common shares of $1.00 each in Gulf Keystone Petroleum Limited   ISIN: BMG4209G2077
b)	Nature of the transaction		Acquisition
c)	Price(s) and volume(s)		Price(s)	Volume(s)
			203.38p	17,208
			203.14	2,461
d)	Aggregated information
	-	Aggregated volume	19,669
	-	Price	203.35p
e)	Date of the transaction		21 October 2026
f)	Place of the transaction		London Stock Exchange