Offshore Data Atlas

Oil field · UK

Guillemot A

Guillemot A is an oil field in the central North Sea, operated by Anasuria Operating Company Limited. It was discovered in 1979 and has produced since 1996. In July 2026 it produced about 1,700 barrels of oil and condensate and 0.019 million cubic metres of gas a day.

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Production

Guillemot A has produced about 52.3 million barrels of oil and condensate and 732 million cubic metres of gas since October 1996.

Oil and condensate, barrels a day, by month
Guillemot A: oil and condensate production by month, October 1996 to July 2026010k20k30k40k200020052010201520202025

Latest: 1,700 barrels a day in July 2026. Highest year: 1997, averaging 21,000 barrels a day. Highest month: December 1996.

Gas, million cubic metres a day, by month
Guillemot A: gas production by month, October 1996 to July 202600.10.20.30.4200020052010201520202025

Latest: 0.019 million cubic metres a day in July 2026. Highest year: 1997, averaging 0.26 million cubic metres a day. Highest month: December 1996.

Average production by year

YearOil and condensate, barrels a dayGas, million m³ a day
2026 (Jan–Jul)1,7000.02
20251,7000.017
20241,6000.022
20232,4000.035
20221,7000.029
20211,8000.028
20202,8000.04
20192,9000.03
20184,0000.051
20172,7000.028
20163,3000.079
20153,8000.058
20142,8000.03
20132,9000.031
201269under 0.001
20112,2000.031
20103,7000.057
20094,5000.09
20084,1000.06
20072,4000.026
20064,9000.051
20056,1000.1
20046,8000.11
20037,1000.098
20026,7000.09
20014,4000.065
20005,8000.08
19998,6000.13
199814,0000.2
199721,0000.26
1996 (Oct–Dec)20,0000.28

Field details

StatusProducing
TypeOil field
OperatorAnasuria Operating Company Limited
Partners
  • Anasuria Hibiscus UK Limited 50%
  • Ping Petroleum UK PLC 50%
  • Anasuria Operating Company Limited 0%
Original operatorShell
DiscoveredDecember 1979 (well 21/25-2)
First productionOctober 1996
Water depth116 m
RegionCentral North Sea
Wells inside the outline19

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:

P13Adura Energy, Dana Petroleum Limited, Hibiscus Petroleum, NEO NEXT+ Energy, Ping Petroleum Limited, Serica Energy

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.