Company · the network on the UK Continental Shelf

CHRYSAOR (U.K.) ALPHA LIMITED

CHRYSAOR (U.K.) ALPHA LIMITED holds stakes in 2 fields on the UK Continental Shelf. The map shows how the fields connect to facilities, pipelines and landfall.

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Fields with a stake: 2; NSTA · 8 Oct 2026

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.

CHRYSAOR (U.K.) ALPHA LIMITED2 fields with a stakeRegistration number: GB-COH 02374592

Field and shareNSTA · 8 Oct 2026

Facilities and pipelines

Landfall

Field and shareSouth Valiant 12%truncated by the sourceShut down
Facilities and pipelines
The source does not link facilities to the fields.
Landfall
The source does not show where the production comes ashore.
Field and shareVulcan 7%truncated by the sourceShut down
Facilities and pipelines
The source does not link facilities to the fields.
Landfall
The source does not show where the production comes ashore.

Partners

The companies CHRYSAOR (U.K.) ALPHA LIMITED shares the most fields with, by current stakes in the source. NSTA · 8 Oct 2026

ARCO BRITISH LIMITED, LLC 2 shared fields
CHRYSAOR DEVELOPMENTS LIMITED 2 shared fields
BP EXPLORATION (ALPHA) LIMITED 1 shared field
BP EXPLORATION BETA LIMITED 1 shared field
CHRYSAOR PETROLEUM LIMITED 1 shared field
CHRYSAOR PRODUCTION (U.K.) 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.

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.

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.