| Date | TitleTitle | ||||
|---|---|---|---|---|---|
| 05/03/26 | 07:00:10 | 5 Mar 2026 | Full year results for the year to 31 December 2025 | RNS | |
| 02/03/26 | 11:00:00 | 2 Mar 2026 | Total Voting Rights | RNS | |
| 19/02/26 | 12:00:01 | 19 Feb 2026 | Holding(s) in Company | RNS | |
| 18/02/26 | 11:30:00 | 18 Feb 2026 | Holding(s) in Company | RNS | |
| 16/02/26 | 11:00:00 | 16 Feb 2026 | Holding(s) in Company | RNS | |
| 12/02/26 | 17:30:00 | 12 Feb 2026 | Holding(s) in Company | RNS | |
| 11/02/26 | 09:26:45 | 11 Feb 2026 | Completion of LLOG acquisition | RNS | |
| 02/02/26 | 11:00:00 | 2 Feb 2026 | Total Voting Rights | RNS | |
| 30/01/26 | 10:00:00 | 30 Jan 2026 | Director Declaration | RNS | |
| 22/01/26 | 07:00:08 | 22 Jan 2026 | Trading and Operations Update | RNS | |
| 19/01/26 | 16:00:00 | 19 Jan 2026 | Director Declaration | RNS | |
| 16/01/26 | 07:00:05 | 16 Jan 2026 | Regulatory information on the acquisition of LLOG | RNS | |
| 13/01/26 | 07:00:04 | 13 Jan 2026 | Transaction in Own Shares | RNS | |
| 12/01/26 | 07:00:06 | 12 Jan 2026 | Transaction in Own Shares | RNS | |
| 09/01/26 | 07:00:05 | 9 Jan 2026 | Transaction in Own Shares | RNS | |
| 08/01/26 | 07:00:07 | 8 Jan 2026 | Transaction in Own Shares | RNS | |
| 07/01/26 | 07:00:04 | 7 Jan 2026 | Transaction in Own Shares | RNS | |
| 06/01/26 | 07:00:05 | 6 Jan 2026 | Transaction in Own Shares | RNS | |
| 05/01/26 | 07:00:04 | 5 Jan 2026 | Transaction in Own Shares | RNS | |
| 02/01/26 | 12:00:01 | 2 Jan 2026 | Block listing Interim Review | RNS | |
| 02/01/26 | 12:00:01 | 2 Jan 2026 | Total Voting Rights | RNS | |
| 02/01/26 | 07:00:05 | 2 Jan 2026 | Transaction in Own Shares | RNS | |
| 31/12/25 | 07:00:07 | 31 Dec 2025 | Harbour appointed operator of Zama project | RNS | |
| 31/12/25 | 07:00:06 | 31 Dec 2025 | Transaction in Own Shares | RNS | |
| 30/12/25 | 07:00:03 | 30 Dec 2025 | Transaction in Own Shares | RNS | |
| 29/12/25 | 07:00:05 | 29 Dec 2025 | Transaction in Own Shares | RNS | |
| 24/12/25 | 07:00:04 | 24 Dec 2025 | Transaction in Own Shares | RNS | |
| 23/12/25 | 07:00:04 | 23 Dec 2025 | Transaction in Own Shares | RNS | |
| 22/12/25 | 07:00:07 | 22 Dec 2025 | Strategic acquisition of LLOG | RNS | |
| 22/12/25 | 07:00:05 | 22 Dec 2025 | Transaction in Own Shares | RNS | |
| 19/12/25 | 07:00:04 | 19 Dec 2025 | Transaction in Own Shares | RNS | |
| 18/12/25 | 07:00:05 | 18 Dec 2025 | Transaction in Own Shares | RNS | |
| 17/12/25 | 07:00:07 | 17 Dec 2025 | Transaction in Own Shares | RNS | |
| 16/12/25 | 07:00:05 | 16 Dec 2025 | Transaction in Own Shares | RNS | |
| 15/12/25 | 14:00:00 | 15 Dec 2025 | Holding(s) in Company | RNS | |
| 15/12/25 | 07:00:05 | 15 Dec 2025 | Transaction in Own Shares | RNS | |
| 12/12/25 | 07:00:06 | 12 Dec 2025 | UK North Sea acquisition | RNS | |
| 09/12/25 | 07:00:09 | 9 Dec 2025 | Directorate change | RNS | |
| 08/12/25 | 07:00:08 | 8 Dec 2025 | Sale of Natuna Sea Block A and Tuna in Indonesia | RNS | |
| 04/12/25 | 07:00:10 | 4 Dec 2025 | Transaction in Own Shares | RNS | |
| 03/12/25 | 07:00:06 | 3 Dec 2025 | Transaction in Own Shares | RNS | |
| 02/12/25 | 07:00:08 | 2 Dec 2025 | Transaction in Own Shares | RNS | |
| 01/12/25 | 12:30:00 | 1 Dec 2025 | Total Voting Rights | RNS | |
| 01/12/25 | 07:00:09 | 1 Dec 2025 | Transaction in Own Shares | RNS | |
| 28/11/25 | 07:00:06 | 28 Nov 2025 | Transaction in Own Shares | RNS | |
| 27/11/25 | 07:00:07 | 27 Nov 2025 | Transaction in Own Shares | RNS | |
| 26/11/25 | 07:00:09 | 26 Nov 2025 | Transaction in Own Shares | RNS | |
| 25/11/25 | 07:00:12 | 25 Nov 2025 | Transaction in Own Shares | RNS | |
| 24/11/25 | 07:00:08 | 24 Nov 2025 | Transaction in Own Shares | RNS | |
| 21/11/25 | 07:00:10 | 21 Nov 2025 | Transaction in Own Shares | RNS |
| Date | TitleTitle | ||||
|---|---|---|---|---|---|
| 05/03/26 | 07:00:10 | 5 Mar 2026 | Full year results for the year to 31 December 2025 | RNS | |
| 02/03/26 | 11:00:00 | 2 Mar 2026 | Total Voting Rights | RNS | |
| 19/02/26 | 12:00:01 | 19 Feb 2026 | Holding(s) in Company | RNS | |
| 18/02/26 | 11:30:00 | 18 Feb 2026 | Holding(s) in Company | RNS | |
| 16/02/26 | 11:00:00 | 16 Feb 2026 | Holding(s) in Company | RNS | |
| 12/02/26 | 17:30:00 | 12 Feb 2026 | Holding(s) in Company | RNS | |
| 11/02/26 | 09:26:45 | 11 Feb 2026 | Completion of LLOG acquisition | RNS | |
| 02/02/26 | 11:00:00 | 2 Feb 2026 | Total Voting Rights | RNS | |
| 30/01/26 | 10:00:00 | 30 Jan 2026 | Director Declaration | RNS | |
| 22/01/26 | 07:00:08 | 22 Jan 2026 | Trading and Operations Update | RNS | |
| 19/01/26 | 16:00:00 | 19 Jan 2026 | Director Declaration | RNS | |
| 16/01/26 | 07:00:05 | 16 Jan 2026 | Regulatory information on the acquisition of LLOG | RNS | |
| 13/01/26 | 07:00:04 | 13 Jan 2026 | Transaction in Own Shares | RNS | |
| 12/01/26 | 07:00:06 | 12 Jan 2026 | Transaction in Own Shares | RNS | |
| 09/01/26 | 07:00:05 | 9 Jan 2026 | Transaction in Own Shares | RNS | |
| 08/01/26 | 07:00:07 | 8 Jan 2026 | Transaction in Own Shares | RNS | |
| 07/01/26 | 07:00:04 | 7 Jan 2026 | Transaction in Own Shares | RNS | |
| 06/01/26 | 07:00:05 | 6 Jan 2026 | Transaction in Own Shares | RNS | |
| 05/01/26 | 07:00:04 | 5 Jan 2026 | Transaction in Own Shares | RNS | |
| 02/01/26 | 12:00:01 | 2 Jan 2026 | Block listing Interim Review | RNS | |
| 02/01/26 | 12:00:01 | 2 Jan 2026 | Total Voting Rights | RNS | |
| 02/01/26 | 07:00:05 | 2 Jan 2026 | Transaction in Own Shares | RNS | |
| 31/12/25 | 07:00:07 | 31 Dec 2025 | Harbour appointed operator of Zama project | RNS | |
| 31/12/25 | 07:00:06 | 31 Dec 2025 | Transaction in Own Shares | RNS | |
| 30/12/25 | 07:00:03 | 30 Dec 2025 | Transaction in Own Shares | RNS | |
| 29/12/25 | 07:00:05 | 29 Dec 2025 | Transaction in Own Shares | RNS | |
| 24/12/25 | 07:00:04 | 24 Dec 2025 | Transaction in Own Shares | RNS | |
| 23/12/25 | 07:00:04 | 23 Dec 2025 | Transaction in Own Shares | RNS | |
| 22/12/25 | 07:00:07 | 22 Dec 2025 | Strategic acquisition of LLOG | RNS | |
| 22/12/25 | 07:00:05 | 22 Dec 2025 | Transaction in Own Shares | RNS | |
| 19/12/25 | 07:00:04 | 19 Dec 2025 | Transaction in Own Shares | RNS | |
| 18/12/25 | 07:00:05 | 18 Dec 2025 | Transaction in Own Shares | RNS | |
| 17/12/25 | 07:00:07 | 17 Dec 2025 | Transaction in Own Shares | RNS | |
| 16/12/25 | 07:00:05 | 16 Dec 2025 | Transaction in Own Shares | RNS | |
| 15/12/25 | 14:00:00 | 15 Dec 2025 | Holding(s) in Company | RNS | |
| 15/12/25 | 07:00:05 | 15 Dec 2025 | Transaction in Own Shares | RNS | |
| 12/12/25 | 07:00:06 | 12 Dec 2025 | UK North Sea acquisition | RNS | |
| 09/12/25 | 07:00:09 | 9 Dec 2025 | Directorate change | RNS | |
| 08/12/25 | 07:00:08 | 8 Dec 2025 | Sale of Natuna Sea Block A and Tuna in Indonesia | RNS | |
| 04/12/25 | 07:00:10 | 4 Dec 2025 | Transaction in Own Shares | RNS | |
| 03/12/25 | 07:00:06 | 3 Dec 2025 | Transaction in Own Shares | RNS | |
| 02/12/25 | 07:00:08 | 2 Dec 2025 | Transaction in Own Shares | RNS | |
| 01/12/25 | 12:30:00 | 1 Dec 2025 | Total Voting Rights | RNS | |
| 01/12/25 | 07:00:09 | 1 Dec 2025 | Transaction in Own Shares | RNS | |
| 28/11/25 | 07:00:06 | 28 Nov 2025 | Transaction in Own Shares | RNS | |
| 27/11/25 | 07:00:07 | 27 Nov 2025 | Transaction in Own Shares | RNS | |
| 26/11/25 | 07:00:09 | 26 Nov 2025 | Transaction in Own Shares | RNS | |
| 25/11/25 | 07:00:12 | 25 Nov 2025 | Transaction in Own Shares | RNS | |
| 24/11/25 | 07:00:08 | 24 Nov 2025 | Transaction in Own Shares | RNS | |
| 21/11/25 | 07:00:10 | 21 Nov 2025 | Transaction in Own Shares | RNS |