ConocoPhillips has various interests in producing gas fields in the Rotliegendes and Carboniferous areas of the Southern North Sea. Net production for the SNS in 2010 averaged 150 MMCFD of natural gas.
ROTLEGIENDES
LOGGS
Operator: ConocoPhillips 50.0%.
The Lincolnshire Offshore Gas Gathering System (LOGGS) complex started operating in 1988. The facility receives natural gas from the V-fields, Vampire, Viscount, Valkyrie; the Saturn Unit Area: Saturn, Mimas and Tethys; and the Jupiter Area gas fields: Ganymede, Sinope, Callisto, Europa and NW Bell); as well as the third-party fields: Ann, Alison, Annabel, Audrey and Anglia. In 2009, a pipeline was connected to LOGGS from the Viking B Platform to allow Viking, Victor, Vixen and Victoria gas to be transported through the LOGGS facilities. Natural gas is co-mingled at LOGGS and forwarded to the Theddlethorpe gas terminal in Lincolnshire, England via a 36-inch pipeline.
V-FIELDS
Operator: ConocoPhillips (50.0 – 61.1%).
V-fields comprise four separate gas accumulations (North Valiant, South Valiant, Vanguard and Vulcan) and are produced via normally unmanned production platforms.

SATURN UNIT:
SATURN
Operator: ConocoPhillips 42.9%.
MIMAS
Operator: ConocoPhillips 35.0%.
TETHYS
Operator: ConocoPhillips 25.0%.
The Saturn Unit Area lies in Blocks 48/10a and 48/10b and consists of the gas accumulations Atlas, Hyperion and Rhea. First production began in September 2005.
VIKING
Operator: ConocoPhillips 50.0%.
Viking is situated in Blocks 49/12, 49/16 and 49/17. Viking consists of seven normaly unmanned platforms plus one manned main complex, Viking B, and the associated outlying Vixen subsea satellite.
VICTOR
Operator: ConocoPhillips 20.0%.
Victor is an unmanned platform and subsea wellhead structure located in Blocks 49/17 and 49/2.
GALLEON
Operator: Shell 41.6% (ConocoPhillips 8.4%).
Galleon is located in SNS Blocks 48/15 and 48/20. It has two unmanned facilities platforms and ties back to the Clipper Platform.
CARBONIFEROUS:
Caister Murdoch System
The Caister Murdoch System (CMS) is collectively the Murdoch complex, the Caister satellite platform plus the gas trunkline to the Theddlethorpe gas terminal. CMS acts as a hub for the Murdoch, Caister, Boulton, Munro, CMS III (Hawksley, McAdam, Murdoch K, Boulton H and Watt) and Kelvin fields and also provides third-party transportation.
Murdoch complex
Operator: ConocoPhillips 42.3%.
Caister
Operator: ConocoPhillips 39.0%.
Boulton, cms iii, kELVIN, HARRISON, MUNRO, MURDOCH
Operator: ConocoPhillips 54.5%-59.5%.
The Caister Murdoch System (CMS) consists of the Murdoch complex, the Caister Satellite Platform and the gas trunk line to the Theddlethorpe gas germinal. CMS acts as a hub for the Murdoch, Caister, Boulton, Munro, CMS III and Kelvin fields and also provides third-party transportation.