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.


Where we are active in the UK

View information on active assets in the UK

J-Area

Operated

Asset Operator Harbour equity Associated fields/discoveries
J‑Area Harbour 67.0% Jasmine, Joanne, Judy, Talbot, Dunnottar, Peach North and Calloway
Jade Harbour 67.5%

Greater Britannia Area

Operated

Asset Operator Harbour equity
Britannia Harbour 58.7%
Brodgar Harbour 93.8%
Callanish Harbour 83.5%
Enochdhu Harbour 50.0%

Non-operated

Asset Operator Harbour equity
Alder Ithaca 26.31%

Armada Area

Operated

Asset Operator Harbour equity Associated fields/discoveries
Armada, Everest, Lomond Harbour 100.0% Drake, Fleming, Hawkins, Maria and Seymour

Catcher Area

Operated

Asset

Operator

Harbour equity

Associated fields/discoveries

Catcher

Harbour

90.0%

Burgman, Varadero and Laverda

Southern North Sea

Operated

Asset Operator Harbour equity Associated fields/discoveries
Johnston Harbour 28.75%  
Tolmount Harbour 50.0% Tolmount and Tolmount East

Non-operated

Asset Operator Harbour equity Associated fields/discoveries
Galleon Shell 8.40%  
Ravenspurn North Perenco 28.75%

East Irish Sea

Operated

Asset Operator Harbour equity
Calder, Dalton & Millom
Harbour 100%

West of Shetland

Operated

Asset Operator Harbour equity
Solan Harbour 100.0%

Non-operated

Asset Operator Harbour equity
Clair BP 7.5%
Schiehallion BP 10.0%

Central North Sea

Non-operated

Asset Operator Harbour equity
Buzzard CNOOC 21.73%
Elgin, Franklin & West Franklin Total 19.31%
Erskine Ithaca 32.00%
Gleneig Total 33.27%
Nelson  Shell 1.66%

Photo credit: Elgin Operator, Total

Northern North Sea

Non-operated

Asset

Operator

Harbour equity

Beryl

Apache

39.44%

Buckland

Apache

37.47%

Callater

Apache

45.00%

Kraken

EnQuest

29.50%

Ness/Nevis Central

Apache

39.44%

Nevis South

Apache

42.82%

Nevis West

Apache

49.09%

Skene 

Apache

34.04%

Storr

Apache

41.00%

Photo credit: Beryl Operator, Apache

SAGE Terminal

Non-operated

Asset Operator Harbour equity
Sage Terminal
Ancala 19.72%

Photo credit: Operator, Ancala Midstream

Recent activity

The UK was Harbour’s second largest producer in 2025, averaging 155 kboepd (2024: 149 kboepd).

The increase was driven by new wells onstream at J-Area and Greater Britannia Area, as well as a full year’s contribution from Talbot, a subsea tie-back to J-Area. Strong operating efficiency and subsurface delivery across our operated UK hubs further supported production.

We completed acquisition of Waldorf Energy Partners Ltd and Waldorf Production Ltd, for $163 million, in July 2026. The acquisition delivered cash flow benefits and built on action we had already taken to improve the long-term sustainability of our UK business. 


Related news

Harbour Energy completes UK North Sea acquisition

Harbour Energy announces that it has completed the acquisition of substantially all the subsidiaries of Waldorf Energy Partners Ltd and Waldorf Production Ltd (Waldorf) in the UK for $163 million.

Read article
Harbour Energy completes UK North Sea acquisition

UK North Sea acquisition

Harbour Energy announces that it has entered into an agreement to acquire substantially all the subsidiaries of Waldorf Energy Partners Ltd and Waldorf Production Ltd.

Read article
UK North Sea acquisition

5.5% Senior Notes due 2026 Tender Results

Harbour Energy plc announces the results of a previously announced tender offer to purchase for cash any outstanding 5.5% Senior Notes due 2026.

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5.5% Senior Notes due 2026 Tender Results