Gas field · UK

Callisto

Name: Callisto gas field monthly production
Creator: North Sea Transition Authority
License: https://www.nstauthority.co.uk/footer/terms-and-conditions/

Callisto is a gas field in the southern North Sea, operated by Harbour Energy PLC. It was discovered in 1990 and produced from 1995 to 2011. Production has ceased. From February 2001, when its monthly records begin, it produced about 707 million cubic metres of gas.

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Production

Callisto produced about 670 barrels of oil and condensate and 707 million cubic metres of gas between February 2001 and August 2011. The NSTA's monthly records for the field begin in February 2001, but it started producing in October 1995, so earlier output isn't included.

Gas, million cubic metres a day, by month

Latest: under 0.001 million cubic metres a day in August 2011. Highest year: 2002, averaging 0.44 million cubic metres a day. Highest month: November 2008.

Oil and condensate, barrels a day, by month

Latest: 0 barrels a day in August 2011. Highest year: 2008, averaging 2 barrels a day. Highest month: November 2008.

Average production by year

Year	Oil and condensate, barrels a day	Gas, million m³ a day
2011 (Jan–Aug)	0	0.01
2010	0	0.047
2009	0	0.052
2008	2	0.1
2007	0	0.11
2006	0	0.078
2005	0	0.11
2004	0	0.16
2003	0	0.3
2002	0	0.44
2001 (Feb–Dec)	0	0.58

Field details

Status	Production ceased
Type	Gas field
Operator	Harbour Energy PLC
Partners	Esso Exploration and Production UK Limited 50% Equinor UK Limited 30% Chrysaor Production (U.K.) Limited 20%
Original operator	Conoco
Discovered	February 1990 (well 49/22-6)
First production	October 1995
Water depth	22 m
Region	Southern North Sea
Wells inside the outline	5

Platforms and installations

No platforms or production ships are recorded on the field or within 2 km of it.

Nearby

Fields within 10 km: Bessemer (1.1 km), Sinope (1.7 km), Bell (1.9 km), Victor (2.9 km), Ganymede (3.5 km), Europa (3.8 km).
Protected areas overlapping the field: North Norfolk Sandbanks and Saturn Reef SAC.

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.

Callisto's production adds up the NSTA's reports for Callisto, Callisto North.