Director / PDMR Shareholdings

20 October 2026

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

Director / PDMR Shareholdings

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

Jon Harris, Chief Executive Officer, bought a total of 14,000 common shares in the Company on 20 October 2026 at a price of 212.7287p per common share on the London Stock Exchange. Following the transaction, Jon Harris owns 546,401 common shares in the Company, in aggregate representing 0.25% of the issued share capital of the Company.

Gabriel Papineau-Legris, Chief Executive Officer, bought a total of 10,000 common shares in the Company on 20 October 2026 at a volume weighted average price of 196.9284p per common share on the London Stock Exchange. Following the transactions, Gabriel Papineau-Legris owns 529,334 common shares in the Company, in aggregate representing 0.24% of the issued share capital of 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		Jon Harris
2	Reason for the notification
a)	Position/status		Chief Executive Officer
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)
			212.7287p	14,000
d)	Aggregated information
	-	Aggregated volume	14,000
	-	Price	212.7287p
e)	Date of the transaction		20 October 2026
f)	Place of the transaction		London Stock Exchange

1	Details of the person discharging managerial responsibilities/person closely associated
a)	Name		Gabriel Papineau-Legris
2	Reason for the notification
a)	Position/status		Chief Financial Officer
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)
			196.8568p	5,000
			197p	5,000
d)	Aggregated information
	-	Aggregated volume	10,000
	-	Price	196.9284p
e)	Date of the transaction		20 October 2026
f)	Place of the transaction		London Stock Exchange