US energy giant ConocoPhillips has confirmed that first production has been achieved from an appraisal well, extending the Jade gas condensate field in the UK Central North Sea.
The Jade field is tied back to the Judy platform, which is located about 150 miles south-east of Aberdeen.
ConocoPhillips is operator and holds a 32.5% stake in the field.
Its co-venturers are BG Group (35%), Chevron North Sea Limited (19.93%) Eni UK (7%) and OMV (UK) Ltd (5.57%).
The appraisal well was drilled by the Maersk Resilient rig from the Jade platform and went online last month.
David Chenier, UK president for ConocoPhillips, said: "This discovery adds to our company portfolio of commercial discoveries in the Central North Sea and it will help to ensure continuity of production from the J-Area.
"The achievement of production from this well means that another structure to the south has also now been de-risked for targeting as a potential development opportunity for the future."