Company · the network on the UK Continental Shelf
HARBOUR ENERGY CNS (I) LIMITED
HARBOUR ENERGY CNS (I) LIMITED holds stakes in 5 fields on the UK Continental Shelf. The map shows how the fields connect to facilities, pipelines and landfall.
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- Calculated equity production, last 12 months
- 0.26 million Sm³ o.e.
- Estimate · Aug 2025–Jul 2026 · NSTA · 8 Oct 2026
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 3 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%. 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.
Estimate: The calculated equity production divided by the total for all fields in the source (Aug 2025–Jul 2026), both in oil equivalent. The total for the country is over 233 of 289 fields with production in the period; 56 fields that started or stopped in the period are left out of both.
Attribution: Contains information provided by the North Sea Transition Authority and/or other third parties.
The network
The fields with a stake or operatorship, with facilities, pipelines and landfall. Links without their own label have their source in the column heading.
- The colour shows the content:
- Gas
- Oil
- Condensate
- CO₂
- Oil and condensate
- The line shows the source:
- pipeline in NSTA data
- curated, with the source at the link
- possible onward route, not measured flow
- planned or not in service
The links show direction, not volume.
- Facilities and pipelines
The source does not link facilities to the fields.
LandfallThe source does not show where the production comes ashore.
- Facilities and pipelines
The source does not link facilities to the fields.
LandfallThe source does not show where the production comes ashore.
- Facilities and pipelines
The source does not link facilities to the fields.
LandfallThe source does not show where the production comes ashore.
- Facilities and pipelines
The source does not link facilities to the fields.
LandfallThe source does not show where the production comes ashore.
- Facilities and pipelines
The source does not link facilities to the fields.
LandfallThe source does not show where the production comes ashore.
The group
HARBOUR ENERGY CNS (I) LIMITED belongs to the group Harbour Energy.
The link comes from the source · NSTA · 8 Oct 2026
Licences
The licences where HARBOUR ENERGY CNS (I) LIMITED holds a share or is the operator. A licence share is not a field share.
LicencesNSTA · 8 Oct 2026
| Name | Type | Operator | Licensees |
|---|---|---|---|
| P1430Burgman, Catcher, Varadero | licence | PREMIER OIL UK LIMITED | PREMIER OIL UK LIMITED 50%, HARBOUR ENERGY WPUK LIMITED 20%, HARBOUR ENERGY CNS (I) LIMITED 20%, PRAX HURRICANE GLA LIMITED 10% |
Partners
The companies HARBOUR ENERGY CNS (I) LIMITED shares the most fields with, by current stakes in the source. NSTA · 8 Oct 2026
- HARBOUR ENERGY WPUK LIMITED 3 shared fields
- PRAX HURRICANE GLA LIMITED 3 shared fields
- PREMIER OIL UK LIMITED 3 shared fields
- ENQUEST HEATHER LIMITED 1 shared field
- HARBOUR ENERGY CNS (II) LIMITED 1 shared field
- ITHACA EPSILON LIMITED 1 shared field
- ONE-DYAS UK LIMITED 1 shared field
- TAQA BRATANI LIMITED 1 shared field
Notes
- The shares are legal ownership shares at NSTA, not the company's reported production.
- NSTA's field layer gives the shares in whole percent, truncated (97.13915 is shown as 97). The sum for a field can be below 100%, and share × production then comes out slightly low. For 68 fields the shares with decimals from a subarea in NSTA's licence subareas are used: the subarea carries the field name, exactly the same licensees, shares that truncate to the field layer's whole percent and a sum of 100%.
- NSTA has no share history. OESA keeps its own snapshots of the shares from 8 Oct 2026; changes before that are unknown.
- The production is NSTA's PPRS figures per field and month: oil and condensate in m³, gas (associated and dry gas combined) in 1,000 Sm³. Fields reported in parts are the sum of the parts. Coal mine vents are not included.
- The operator is NSTA's organisation group (for example APACHE CORPORATION), not the legal company holding the share. NSTA does not link installations and pipelines to fields; they are listed under the operator. Only pipelines in use carrying oil, gas, condensate, mixed hydrocarbons or CO₂ are included.
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.
- 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.
All sources for United Kingdom
Not in the data: Flow in each pipeline, where the gas ends up, the buyers of oil and gas and the company's contracts.