Gas field · UK
Tolmount
Tolmount is a gas field in the southern North Sea, operated by Harbour Energy PLC. It was discovered in 2011 and has produced since 2022. In July 2026 it produced about 2.3 million cubic metres of gas a day.
Production
Tolmount has produced about 1.8 million barrels of oil and condensate and 6.7 billion cubic metres of gas since April 2022.
Latest: 2.3 million cubic metres a day in July 2026. Highest year: 2024, averaging 4.8 million cubic metres a day. Highest month: July 2022.
Latest: 480 barrels a day in July 2026. Highest year: 2024, averaging 1,200 barrels a day. Highest month: June 2022.
Average production by year
| Year | Oil and condensate, barrels a day | Gas, million m³ a day |
|---|---|---|
| 2026 (Jan–Jul) | 740 | 3.3 |
| 2025 | 900 | 3.9 |
| 2024 | 1,200 | 4.8 |
| 2023 | 1,200 | 3.8 |
| 2022 (Apr–Dec) | 1,400 | 5.2 |
Field details
| Status | Producing |
|---|---|
| Type | Gas field |
| Operator | Harbour Energy PLC |
| Partners |
|
| Discovered | September 2011 (well 42/28d-12) |
| First production | April 2022 |
| Water depth | 54 m |
| Region | Southern North Sea |
| Wells inside the outline | 12 |
Platforms and installations
Licences
The field lies in this current licence:
Nearby
- Fields within 10 km: Wollaston (3.5 km), Whittle (4.8 km), Minerva (4.9 km), Apollo (9.6 km).
- Wind farms within 40 km: Westermost Rough (31 km).
- Protected areas overlapping the field: Southern North Sea SAC.
Sources
Production: NSTA, UKCS field production reports (PPRS), monthly to July 2026. Field details, platforms, licences and wells: NSTA open data, as on the atlas map. Contains information provided by the North Sea Transition Authority and/or other third parties. Used under the NSTA Open User Licence.
Offshore Data Atlas converts the reported volumes to barrels and cubic metres a day (one cubic metre is 6.29 barrels). UK gas figures are all the gas produced, including gas used offshore as fuel, flared or put back into the reservoir.