Harbour is one of the largest producers of oil and gas in the UK North Sea.
Our UK offshore operated positions include the Greater Britannia Area, J-Area, AELE, Catcher Area and Tolmount Area. We also have non-operated stakes including Elgin/Franklin, Buzzard, West of Shetland (Clair, Schiehallion and Solan, which is operated) and the Beryl Area. Our other UK North Sea interests include East Irish Sea, Galleon, Ravenspurn North and Johnston.
The UK was Harbour’s largest producer in 2024, averaging 149 kboepd (2023: 175 kboepd). UK production was underpinned by strong reservoir performance and high operating efficiency across Harbour’s operated Greater Britannia, AELE and Tolmount hubs and new wells and projects on-stream in the second half of the year.
In November 2024, Harbour delivered first oil from the Talbot project, a three-well subsea tie back to J-Area. The project was completed on schedule, within budget and with no recordable injuries, marking a material milestone for Harbour. 2024 also saw a return to drilling at the Britannia satellite fields, bringing on-stream the Callanish F6 infill well in July, while, at AELE, the North West Seymour infill well came on-stream in September. This well, together with plant modifications, has the potential to extend Armada’s field life beyond 2030.
During 2024, Harbour successfully appraised the Leverett gas discovery, made an oil discovery at Gilderoy and a gas discovery at Jocelyn South. Both Leverett and Gilderoy are potential subsea tiebacks to Greater Britannia while Jocelyn South, which was drilled as a keeper well, was brought on-stream through the Judy platform in March 2025.