Gas field · UK

South Valiant

South Valiant is a gas field in the southern North Sea, operated by Harbour Energy PLC. It was discovered in 1970 and produced from 1988 to 2018. Production has ceased. From January 1995, when its monthly records begin, it produced about 4.7 billion cubic metres of gas.

Production

South Valiant produced about 90,000 barrels of oil and condensate and 4.7 billion cubic metres of gas between January 1995 and April 2018. The NSTA's monthly records for the field begin in January 1995, but it started producing in October 1988, so earlier output isn't included.

Gas, million cubic metres a day, by month
South Valiant: gas production by month, January 1995 to April 2018012319952000200520102015

Latest: 0.13 million cubic metres a day in April 2018. Highest year: 2000, averaging 1.5 million cubic metres a day. Highest month: January 1997.

Oil and condensate, barrels a day, by month
South Valiant: oil and condensate production by month, January 1995 to April 201805010015019952000200520102015

Latest: 3 barrels a day in April 2018. Highest year: 1995, averaging 28 barrels a day. Highest month: January 1995.

Average production by year

YearOil and condensate, barrels a dayGas, million m³ a day
2018 (Jan–Apr)30.13
201740.17
201630.13
201540.17
201430.14
201350.22
201230.16
201150.24
201060.29
200960.34
200830.39
200750.44
200660.46
200580.55
2004100.58
2003110.65
2002180.94
2001231.2
2000211.5
1999100.82
1998251.1
1997131.1
1996260.95
1995280.48

Field details

StatusProduction ceased
TypeGas field
OperatorHarbour Energy PLC
Partners
  • BP Exploration Beta Limited 37%
  • Chrysaor Petroleum Limited 25%
  • Arco British Limited, LLC 12%
  • Chrysaor (U.K.) Alpha Limited 12%
  • Chrysaor Developments Limited 12%
Original operatorConoco
DiscoveredJuly 1970 (well 49/21-2)
First productionOctober 1988
Water depth34 m
RegionSouthern North Sea
Wells inside the outline11

Platforms and installations

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

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.