Gas field · UK
Sillimanite
Sillimanite is a gas field in the southern North Sea, operated by Wintershall Noordzee. It was discovered in 2015 and produced from 2020 to 2026. Production has ceased. Over its life it produced about 2.3 billion cubic metres of gas.
Production
Sillimanite produced about 910 barrels of oil and condensate and 2.3 billion cubic metres of gas between February 2020 and June 2026.
Latest: 0.25 million cubic metres a day in June 2026. Highest year: 2021, averaging 2.1 million cubic metres a day. Highest month: July 2021.
Latest: under 1 barrels a day in June 2026. Highest year: 2021, averaging under 1 barrels a day. Highest month: July 2021.
Average production by year
| Year | Oil and condensate, barrels a day | Gas, million m³ a day |
|---|---|---|
| 2026 (Jan–Jun) | under 1 | 0.27 |
| 2025 | under 1 | 0.73 |
| 2024 | under 1 | 0.39 |
| 2023 | under 1 | 0.43 |
| 2022 | under 1 | 0.95 |
| 2021 | under 1 | 2.1 |
| 2020 (Feb–Dec) | under 1 | 1.6 |
Field details
| Status | Production ceased |
|---|---|
| Type | Gas field |
| Operator | Wintershall Noordzee |
| Partners |
|
| Discovered | July 2015 (well 44/19a-8) |
| First production | February 2020 |
| Water depth | 28 m |
| Region | Southern North Sea |
| Wells inside the outline | 1 |
Platforms and installations
No platforms or production ships are recorded on the field or within 2 km of it.
Nearby
- Fields within 10 km: Katy (4.5 km).
- Protected areas overlapping the field: Dogger Bank 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.