Our operated asset decommissioning activities in the UK are currently focused on the southern and central North Sea areas.

The Caledonia Field is a subsea development located in UKCS Block 16/26, which was tied back to the Britannia platform. The field came on stream in 2003.

Caledonia Decommissioning Programmes

Viking Area – operator Viking/Vixen 50.0%; Victor 20.0%

The Viking area consists of the Viking, Vixen and Victor fields. Production from Viking ceased in 2016 and decommissioning is nearing completion. Platform removals began in 2019. The final two subsea wells are scheduled to be plugged and abandoned in 2021-2022.

Theddlethorpe Gas Terminal (TGT) - operator 50.0%

The TGT site in Lincolnshire was deemed hydrocarbon-free in December 2019 and is now in cold suspension. Demolition started in 2020 and is expected to take 18 months to complete. Land remediation and restoration will follow through to 2023.

MacCulloch - operator 40.0%

MacCulloch in Block 15/24 of the CNS ceased production in 2015. Removal of the remaining subsea infrastructure is due to take place between 2022 and 2024.

Huntington - operator 100.0%

First oil was achieved from Huntington in Block 22/14b of the CNS in April 2013.  Cessation of production was originally planned for 2017, but production finally ceased in April 2020.

Huntington Decommissioning Programme for FPSO Float-off
Huntington Field Decommissioning Programme

Balmoral Area - operator (working interest ranges from 44.2% to 100.0%)

The Balmoral, Glamis, Stirling, Brenda and Nicol fields are in Blocks 16/21a, 16/21b and 16/21c of the UK CNS. The Balmoral area ceased production in October 2020.

Balmoral Decommissioning Programmes
Brenda Decommissioning Programmes
Nicol Decommissioning Programmes
Glamis Decommissioning Programmes
Stirling Decommissioning Programmes

Hunter and Rita - operator 79.0% and 76.0%

Cessation of production from Hunter and Rita was approved in January 2019. Hunter is in Block 44/23a of the SNS. The field was discovered in 1992 and developed in 2005. Rita in Blocks 44/21b and 44/21c was discovered in 1996 and developed in 2008 tied back to Hunter.

Hunter & Rita Decommissioning Programmes (30 March 2021)

Johnston Field - operator (working interest 28.75%)

The Johnston Field is a subsea tieback to the Ravenspurn North Central Processing Platform, located in Blocks 43/26a and 43/27a in the southern North Sea. The field came on stream in 1994.

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The Petroleum Act 1998
Decommissioning Programmes for the Johnston subsea pipelines and installations

In accordance with the provisions of the Petroleum Act 1998, Premier Oil E&P UK EU Limited (a Harbour Energy company) has submitted, for the consideration of the Secretary of State for Business, Energy & Industrial Strategy, the draft Decommissioning Programmes for the Johnston subsea pipelines and installations. It is a requirement of the Act that interested parties be consulted on such decommissioning proposals.

The Johnston Field is located in blocks 43/26a and 43/27a of the Southern North Sea, approximately 85 kilometres northeast of Dimlington (Easington). The Johnston Field was developed as a subsea tieback to the Ravenspurn North Central Processing Platform.

The facilities covered by the Johnston Decommissioning Programmes are:

  • All subsea installations, and
  • All subsea pipelines associated with the Johnston Field.

Harbour Energy hereby gives notice that the Johnston Decommissioning Programmes are available on its website below, or alternatively a hard copy of the document may be requested by contacting Harbour Energy during office hours on 01224 205000.

Representations regarding the Johnston Decommissioning Programmes should be submitted in writing to the person named at the address below, or via email to [email protected], by the consultation closing date of 13 May 2022. Submissions should state the grounds upon which any representations are being made.

Dated: 14 April 2022

Pieter voor de Porte,
Decommissioning Strategy & Integration Lead,
Harbour Energy,
Rubislaw House,
Anderson Drive,
Aberdeen, AB15 6FZ

Helicopter landing on offshore platform
Viking field decommissioning activities
Viking platform, southern North Sea
Removal of the topsides at Caister
Bokalift 1 carrying out decommissioning activities
Heavy lift removal operations