Gas field · UK

Leman South

Leman South is a gas field in the southern North Sea, operated by Perenco Oil & Gas. It was discovered in 1968 and has produced since 2012. In July 2026 it produced about under 0.001 million cubic metres of gas a day.

Production

Leman South has produced about 21,000 barrels of oil and condensate and 1.5 billion cubic metres of gas since September 2013. The NSTA's monthly records for the field begin in September 2013, but it started producing in September 2012, so earlier output isn't included.

Gas, million cubic metres a day, by month
Leman South: gas production by month, September 2013 to July 202600.511.522014201620182020202220242026

Latest: under 0.001 million cubic metres a day in July 2026. Highest year: 2015, averaging 1.1 million cubic metres a day. Highest month: March 2015.

Oil and condensate, barrels a day, by month
Leman South: oil and condensate production by month, September 2013 to July 20260204060802014201620182020202220242026

Latest: 0 barrels a day in July 2026. Highest year: 2017, averaging 13 barrels a day. Highest month: August 2021.

Average production by year

YearOil and condensate, barrels a dayGas, million m³ a day
2026 (Jan–Jul)00.024
202500.06
202400.075
202310.11
202250.12
2021130.15
202090.22
2019100.28
201870.25
2017130.39
201600.69
201501.1
2014under 10.53
2013 (Sep–Dec)under 10.61

Field details

StatusProducing
TypeGas field
OperatorPerenco Oil & Gas
Partners
  • Perenco UK Limited 78%
  • RockRose UKCS 10 Limited 21%
Original operatorPerenco
DiscoveredApril 1968 (well 53/02-2)
First productionSeptember 2012
Water depth36 m
RegionSouthern North Sea
Wells inside the outline6

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:

P25Perenco Oil & Gas, RockRose 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.