Oil field · UK
Loirston
Loirston is an oil field in the northern North Sea, operated by Apache Corporation. It was discovered in 1989 and has produced since 2011.
Production
Loirston has produced about 335,000 barrels of oil and condensate and 301 million cubic metres of gas since February 2011.
Latest: 0 barrels a day in September 2025. Highest year: 2012, averaging 66 barrels a day. Highest month: July 2011.
Latest: 0 million cubic metres a day in September 2025. Highest year: 2012, averaging 0.056 million cubic metres a day. Highest month: March 2011.
Average production by year
| Year | Oil and condensate, barrels a day | Gas, million m³ a day |
|---|---|---|
| 2025 (Jan–Sep) | 7 | 0.003 |
| 2024 | 45 | 0.015 |
| 2023 | under 1 | under 0.001 |
| 2022 | 0 | under 0.001 |
| 2021 | 6 | 0.002 |
| 2020 | 18 | 0.005 |
| 2019 | 45 | 0.013 |
| 2018 | 40 | 0.019 |
| 2017 | 0 | 0 |
| 2016 | 28 | 0.022 |
| 2015 | 0 | 0 |
| 2014 | 0 | 0 |
| 2013 | 0 | 0 |
| 2012 | 66 | 0.056 |
| 2011 (Feb–Dec) | 730 | 0.75 |
Field details
| Status | Producing |
|---|---|
| Type | Oil field |
| Operator | Apache Corporation |
| Partners |
|
| Original operator | ExxonMobil |
| Discovered | January 1989 (well 9/13b-43Z) |
| First production | February 2011 |
| Water depth | 112 m |
| Region | Northern North Sea |
| Wells inside the outline | 3 |
Platforms and installations
No platforms or production ships are recorded on the field or within 2 km of it. It is probably produced through wells on the seabed, piped to a platform elsewhere.
Licences
The field lies in this current licence:
Nearby
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.