Harbour Energy PlcLSE: HBR

Transaction in Own Shares

· Investegate

HARBOUR ENERGY PLC

("Harbour" or the "Company")

Transaction in Own Shares

Harbour announces that, during the period from 28 September 2026 to 02 October 2026 (the "Reporting Period"), it purchased the following number of its ordinary shares of 0.002 pence each for cancellation under its share buyback programme announced on 6 August 2026.

Aggregated information on shares purchased during the Reporting Period by trading venue

Reporting Period

Number of Shares purchased

Highest price paid (GBP)

Lowest price paid (GBP)

Volume weighted average price paid per share (GBP)

Venue

28/09/2026

5,673

2.6920

2.6860

2.6883

AQXE

28/09/2026

29,402

2.7300

2.6860

2.6990

BATE

28/09/2026

46,840

2.7300

2.6880

2.7116

CHIX

28/09/2026

53,492

2.7280

2.6860

2.7030

XLON

28/09/2026

14,593

2.7300

2.6860

2.7056

TRQX

29/09/2026

5,907

2.6700

2.6220

2.6401

AQXE

29/09/2026

16,701

2.6420

2.6180

2.6300

BATE

29/09/2026

50,617

2.6800

2.6160

2.6420

CHIX

29/09/2026

49,878

2.6860

2.6160

2.6560

XLON

29/09/2026

26,897

2.6700

2.6120

2.6385

TRQX

30/09/2026

23,011

2.6340

2.5820

2.6141

AQXE

30/09/2026

50,999

2.6340

2.5800

2.6129

BATE

30/09/2026

214,068

2.6440

2.5800

2.6125

CHIX

30/09/2026

162,057

2.6420

2.5820

2.6220

XLON

30/09/2026

44,650

2.6460

2.5800

2.6120

TRQX

01/10/2026

7,811

2.6660

2.6120

2.6470

AQXE

01/10/2026

13,050

2.6660

2.6120

2.6497

BATE

01/10/2026

77,014

2.6820

2.6120

2.6502

CHIX

01/10/2026

82,116

2.6660

2.6120

2.6470

XLON

01/10/2026

23,769

2.6820

2.6120

2.6464

TRQX

02/10/2026

7,245

2.7020

2.6800

2.6880

AQXE

02/10/2026

30,082

2.7320

2.6840

2.7021

BATE

02/10/2026

79,525

2.7520

2.6760

2.7017

CHIX

02/10/2026

56,500

2.7380

2.6900

2.7010

XLON

02/10/2026

29,594

2.7480

2.6780

2.7012

TRQX

Following the purchase and cancellation of these shares, the Company's total number of ordinary shares in issue will be 1,507,048,028. This information may be used by shareholders to determine whether they are required to notify their interest, or a change to their interest, in the Company under the FCA's Disclosure Guidance and Transparency Rules.

To date, Harbour has purchased 20,401,027 ordinary shares in aggregate for cancellation in connection with this buyback programme.

In accordance with Article 5(1)(b) of the UK Market Abuse Regulation, a full breakdown of the individual purchases of ordinary shares made by Barclays behalf of the Company as part of the share buyback programme during the Reporting Period is available at the link below.

http://www.rns-pdf.londonstockexchange.com/rns/6831X_1-2026-10-5.pdf

Enquiries

Rachel Benjamin, Company Secretary

Tel: 020 7730 1111

Elizabeth Brooks, SVP Investor Relations                 

Tel: 020 3833 2421  

Original release on Investegate

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