Group · 1 country
ONE-Dyas
ONE-Dyas has companies with stakes, operatorships or plants in United Kingdom in OESA's data. The figures apply to each country separately and are not the group's global production.
In other countries
The companies that belong to ONE-Dyas outside the Norwegian shelf, according to OESA's data. Each country has its own source and period, so the figures apply to each country separately. They are not the company's global production, and they are not added up.
United Kingdom
full data · retrieved 8 Oct 2026- Calculated equity production, last 12 months, 5 of 6 fields and licences with production
- 0.27 million Sm³ o.e.
- Estimate · Aug 2025–Jul 2026 · NSTA · 8 Oct 2026
Companies- ONE-DYAS E&P LIMITED linked by the source · GLEIF – LEI register (Level 1 and 2) · 14 Oct 2026 · ultimate consolidation · accounts 2024
- ONE-DYAS UK LIMITED linked by the source · GLEIF – LEI register (Level 1 and 2) · 14 Oct 2026 · ultimate consolidation · accounts 2024
Fields East Sean 50%, North Sean 50%, South Sean 50%, Sillimanite 11%, Mariner 6%, Buzzard 5%, Glenelg 2.19% in the licence, Elgin 2% and 2 more fields (see the country)
Estimate: Calculated by OESA, not figures from the company: for each field the share that applied in each month is multiplied by the production from NSTA (Aug 2025–Jul 2026), converted to oil equivalent and summed over 5 fields and licences. Some shares are stated as of 8 Oct 2026 and may have differed earlier in the period. Some shares are truncated by the source. Oil equivalent by the Norwegian Offshore Directorate's rule: oil, condensate and NGL in Sm³ count equally, 1,000 Sm³ of gas = 1 Sm³ o.e. and 1 tonne of NGL = 1.9 Sm³ o.e. Estimate: the source gives m³ without reference conditions, and the figure is treated as Sm³. The error can be up to about 5%. Not included in the sum: 1 field or licence where the production does not cover the whole period or applies to another period. The figure applies in the United Kingdom and is not the company's global production. Per day: Sm³ o.e. × 6.29 barrels per Sm³ divided by the number of days in the period. Rounded to the nearest 10 below 1,000, the nearest 100 below 10,000 and the nearest 1,000 above that.
Attribution: Contains information provided by the North Sea Transition Authority and/or other third parties.
Notes
- The companies in each country are linked to the group by LEI, registration number or curated with a source, never by name similarity. GLEIF consolidation concerns the accounts, not ownership shares, and never moves production.
- The figures apply to each country separately, with that country's period and source. They are not the company's global production, and they are not added up.
Sources
All figures and links on the page come from these sources. The licence and attribution are as each source requires. Conversions and calculations are OESA's own and labelled with the method.
- GLEIF – LEI register (Level 1 and 2) 14 Oct 2026Licence: CC0 1.0Attribution: GLEIF LEI data (CC0 1.0)
- NSTA – offshore fields with licensees and shares North Sea Transition Authority · 8 Oct 2026Licence: North Sea Transition Authority User Agreement (June 2023)Attribution: Contains information provided by the North Sea Transition Authority and/or other third parties.
- NSTA – licence subareas by equity group holder (exact shares) North Sea Transition Authority · 8 Oct 2026Licence: North Sea Transition Authority User Agreement (June 2023)Attribution: Contains information provided by the North Sea Transition Authority and/or other third parties.
- NSTA – field production by month (PPRS) North Sea Transition Authority · 8 Oct 2026Licence: North Sea Transition Authority User Agreement (June 2023)Attribution: Contains information provided by the North Sea Transition Authority and/or other third parties.