Oil + gas: decommissioning of offshore installations + pipelines

Overview

The decommissioning of offshore oil and gas installations and pipelines on the United Kingdom Continental Shelf (UKCS) is controlled through the Petroleum Act 1998.

The responsibility for ensuring that the requirements of the Petroleum Act 1998 are complied with rests with the Offshore Petroleum Regulator for Environment and Decommissioning (OPRED) which sits within the Department for Business, Energy and Industrial Strategy.

Owners of oil and gas installations and pipelines are required to decommission their offshore infrastructure at the end of a field’s economic life and the 1998 Act requires owners to set out the measures to decommission disused installations and/or pipelines in a decommissioning programme.

A decommissioning programme must identify all the items of equipment, infrastructure and materials that have been installed or drilled and describe the decommissioning solution for each.

OPRED aims to be transparent in its consideration of decommissioning programmes. As a result members of the public, other organisations, non-governmental organisations and other government departments or agencies are invited to comment on the proposals set out in a programme.

Details of the current programmes under consideration are noted in the table below.

OPRED provides guidance on the regulatory requirements for decommissioning. Final guidance on the Environmental Considerations for Decommissioning (Section 12) has now been incorporated into the guidance notes Offshore Oil and Gas Decommissioning Guidance Notes November 2018 (PDF, 1.27 MB, 138 pages). Please see Updates to Offshore Oil and Gas Decommissioning Guidance

Financial Assurance Guidance for the Decommissioning of Offshore Oil and Gas Installations and Pipelines. Financial Assurance Guidance (PDF, 278 KB, 17 pages)

The guidance outlines how the government assesses the financial capability of persons with a relevant interest in or considering taking an interest in an offshore oil or gas field. For the purposes of satisfying the Secretary of State that that person will be capable of carrying out a decommissioning programme in relation to that interest.

It explains our financial assurance policy and existing processes setting out the steps taken to assess the financial health of offshore oil and gas companies with an interest or potential interest in a field, outlining how and when we may use the statutory powers set out in the Petroleum Act 1998.

If you have any comments or questions relevant to the guidance, please email us at odu@energysecurity.gov.uk.

Proposed changes to charging a fee in respect of decommissioning offshore (oil and gas) installations and pipelines under the Petroleum Act 1998 as amended by the Energy Act 2008

The aim of this consultation was to formally seek views from stakeholders such as offshore oil and gas operators, companies with an interest in decommissioning offshore oil and gas installations and pipelines, and other interested parties, on the proposal to update the charging regime for activity related to the regulatory functions for the decommissioning of offshore oil and gas installations. Fees consultation document - May 2021 (PDF, 224 KB, 19 pages) Offshore oil and gas cost recovery consultation impact assessment (PDF, 247 KB, 11 pages) Response to consultation document - April 2022 (PDF, 189 KB, 12 pages)

If you have any questions regarding the proposed changes please direct these to odu@energysecurity.gov.uk.

Draft decommissioning programmes under consideration

Decommissioning Programme	Operator	Main Points of DP	Documents
Durango Subsea Installation	Perenco North Sea Limited	Wellhead protection structure will be recovered to shore for either re-use, recycling, or disposal.	Durango Decommissioning Programme (PDF, 938 KB, 33 pages) Durango Environmental Appraisal (PDF, 3.85 MB, 88 pages)
Guinevere Pipelines	Perenco Gas (UK) Limited	Partial removal of pipelines and remaining section of buried/trenched pipelines to remain in situ.	Guinevere Pipelines DP (PDF, 1.87 MB, 39 pages) Guinevere Pipelines CA (PDF, 2.71 MB, 62 pages) Guinevere Pipelines EA (PDF, 4.39 MB, 102 pages)

Garrow	Energean UK Ltd	Small steel platform and surface laid sections of pipelines will be recovered to shore for re-use or recycling. Protection/stabilisation features will be recovered to shore. Buried section of pipelines and stabilisation features to be left in situ.	Garrow DP (PDF, 5.16 MB, 47 pages) Garrow CA (PDF, 2.88 MB, 36 pages) Garrow EA (PDF, 8.05 MB, 103 pages)
Thistle Upper Jacket	EnQuest Heather Limited	The upper jacket and pipeline risers will be cut between 65 m and 75 m below LAT and recovered to shore.	Thistle Upper Jacket DP (PDF, 3.53 MB, 46 pages)
Eider Upper Jacket	TAQA Bratani Limited	The Eider Upper Jacket and pipeline risers will be cut to a depth of approximately 127m below lowest astronomical tide and recovered to shore for recycling or disposal.	Eider Upper Jacket DP (PDF, 3.47 MB, 44 pages) Eider Upper Jacket EA (PDF, 3.22 MB, 93 pages)
East Brae Upper Jacket	TAQA Bratani Limited	The East Brae Upper Jacket and pipeline risers will be cut to a depth of approximately 97m below lowest astronomical tide and recovered to shore for recycling or disposal.	East Brae Upper Jacket DP (PDF, 1.71 MB, 38 pages)
Beauly	Repsol Sinopec Resources UK Limited	The wellhead and WHPS will be recovered to shore. The trenched and buried pipelines and umbilicals will be decommissioned in situ. The exposed sections will be either trenched and buried or covered with rock. All surface laid spools/jumpers will be recovered to shore.	Beauly DP (PDF, 4.89 MB, 40 pages) Beauly & Burghley CA (PDF, 11.5 MB, 73 pages) Beauly & Burghley EA (PDF, 12.6 MB, 97 pages)
Burghley	Repsol Sinopec Resources UK Limited	The valve skid, wellhead and WHPS will be recovered to shore. The trenched and buried pipelines and umbilicals will be decommissioned in situ. The exposed sections will be either trenched and buied or covered with rock. All surface laid spools/jumpers will be recovered to shore.	Burghley DP (PDF, 5.16 MB, 42 pages) Beauly & Burghley CA (PDF, 11.5 MB, 73 pages) Beauly & Burghley EA (PDF, 12.6 MB, 97 pages)
Dunlin Alpha	Fairfield Betula Limited	Decommissioning in situ of Dunlin Alpha concrete gravity based structure and storage cells.	Dunlin Alpha Decommissioning Programme (PDF, 6.5 MB, 77 pages) Dunlin Alpha Decommissioning Comparative Assessment Report (PDF, 3.66 MB, 133 pages) Dunlin Alpha Decommissioning Environmental Appraisal (PDF, 6.58 MB, 176 pages)
Brae Alpha, Brae Bravo, Central Brae, West Brae and Sedgwick	Marathon Oil UK LLC	Removal of Brae Alpha and Brae Bravo jackets to the top of the footings. Removal of Central Brae, West Brae and Sedgwick subsea installations. Pipelines to be decommissioned in a variety of ways including removal, trenching and leave in situ.	Brae Alpha, Brae Bravo, Central Brae, West Brae and Sedgwick Decommissioning Programmes (PDF, 15.3 MB, 120 pages) Brae A etc, Environmental Statement – Main Report (PDF, 14.6 MB, 80 pages) Brae A etc. Environmental Statement - Technical Appendices (PDF, 13.3 MB, 96 pages) Brae A Substructure Comparative Assessment (PDF, 1.7 MB, 30 pages) Brae B Substructure Comparative Assessment (PDF, 1.59 MB, 30 pages) Brae Area Subsea Assets Comparative Assessment (PDF, 6.84 MB, 43 pages)
Brent	Shell U.K. Limited	Decommissioning in situ of Brent Bravo, Charlie and Delta concrete gravity based structures.	Brent Decommissioning Programme (PDF, 12 MB, 322 pages) Brent ES (PDF, 12.5 MB, 475 pages) Brent EIA (PDF, 5.05 MB, 429 pages) Brent ES Appendix (PDF, 2.52 MB, 45 pages) A suite of detailed Technical Documents which support the Decommissioning Programmes documents are available on the Shell Website
Atlantic and Cromarty	BG Global Energy Limited and Hess Limited	Manifold and WHPS to be removed for recycling/disposal. Partial removal of pipelines and remaining section of buried/trenched pipelines to remain in situ.	Atlantic & Cromarty Decommissioning Programmes (PDF, 1.76 MB, 50 pages) Atlantic & Cromarty Stakeholder Report (PDF, 1.11 MB, 32 pages) Atlantic & Cromarty Environmental Impact Assessment (PDF, 4.5 MB, 109 pages) Atlantic & Cromarty Comparative Assessment (PDF, 2.06 MB, 110 pages)

Approved decommissioning programmes

	Decommissioning Programme and Approval Date		Operator at approval		Operator following licence / company change	Revision	Approved DetailsDecommissioning andsolution	Year Approvalof DateApproval		Close out report	Year andclose Dateout Accepted	report accepted

KGP Final DP (PDF, 2.49 MB, 56 pages) KGP Final CA (PDF, 1.83 MB, 48 pages) KGP Final EA (PDF, 3.12 MB, 74 pages) May 2024	Gassco AS	-          -	-          Decommissioning in situ of Knarr Gas Pipeline in UKCS sector.	-          May 2024
Rochelle WHPS and Jumper DPs (PDF, 2.87 MB, 41 pages) May 2024	CNOOC Petroleum Europe Limited	-          -	-          Wellhead Protection Structures and associated tie-in spools and jumpers will be recovered to shore for reuse, recycling or disposal.	-          May 2024
Leman 27H + 27J Topsides DP (PDF, 3.36 MB, 80 pages) April 2024	Perenco UK Limited	-          -	-          Topsides will be recovered to shore for either re-use, recycling or disposal.	-          April 2024

Trees Protection Cages (Birch, Larch and Sycamore) DP (PDF, 2.59 MB, 38 pages) February 2024	Spirit Energy North Sea Oil Limited	-          -	-          Removal of Protection cages to shore for recycling	-          February 2024
Leman F & G DP (PDF, 9.92 MB, 86 pages) Leman F & G CA (PDF, 9.5 MB, 63 pages) Leman F & G EA (PDF, 15.1 MB, 165 pages) January 2024	Shell U.K. Limited	-          N/A	-          Removal of topsides and jackets to shore for recycling/disposal. Trenched and buried pipelines to remain in situ; exposed ends removed.	-          January 2024
Helvellyn CA (PDF, 9.84 MB, 46 pages) Helvellyn EA (PDF, 7.37 MB, 101 pages) Helvellyn DP (PDF, 4.75 MB, 44 pages) January 2024	Waldorf Petroleum Resources Limited	-          N/A	-          Subsea installation, surface laid pipeline and umbilical will be recovered to shore for re-use or recycling. Protection/stabilisation features will be recovered to shore. Buried section of pipeline and umbilical to be left in situ.	-          January 2024
Western Isles Subsea Final DP (PDF, 9.34 MB, 75 pages) Western Isles Subsea EA Final (PDF, 7.1 MB, 141 pages) Western Isles Subsea CA Final (PDF, 5.49 MB, 74 pages) October 2023	Dana Petroleum (E&P) Limited	-          N/A	-          Subsea installations and structures, surface laid pipelines and umbilicals to  be recovered to shore for re-use or recycling. Buried pipelines to be left in situ. Protection/stabilisation features will be recovered to shore.	-          October 2023
Devenick (PDF, 2.24 MB, 54 pages) Devenick CA (PDF, 2.02 MB, 58 pages) Devenick EA (PDF, 6.14 MB, 127 pages) October 2023	Taqa Bratani Limited	-          N/A	-          Installations,structures, and surface laid pipelines and umbilicals will be recovered to shore for re-use, recycling, or disposal. Surface laid portions of pipelines and umbilicals in close proximity to the East Brae jacket footings, and trenched and buried pipelines and umbilicals may be left in-situ.	-          October 2023
Western Isles FPSO DP (PDF, 5.78 MB, 65 pages) September 2023	Dana Petroleum (E&P) Limited	-          -	-          Full removal of the FPSO, flexible risers, dynamic umbilicals and the upper sections of the mooring lines	-          September 2023
Heather Pipelines DP (PDF, 4.22 MB, 56 pages) Heather Pipelines CA (PDF, 5.35 MB, 72 pages) Heather Pipelines EA (PDF, 6.78 MB, 117 pages) September 2023	EnQuest Heather Limited	-          N/A	-          Pipelines to remain in situ with surface laid sections recovered with pipeline ends buried. Riser sections between -75/-85m LAT will be recovered. Exposed protection/stabilisation features will be recovered. Materials will be recovered to shore for reuse, recycling or disposal.Existing rock will remain in situ.	-          September 2023
PLU6294 DP (PDF, 1.08 MB, 37 pages) September 2023	Shell U.K. Limited	-          N/A	-          Surface laid sections will be recovered to shore. The main section of the umbilical is trenched and buried and will remain in situ. Associated concrete mattresses will be recovered to shore.	-          September 2023
Chestnut Phase 2 DP (PDF, 5.6 MB, 57 pages) Chestnut Phase 2 EA (PDF, 7.97 MB, 104 pages) Chestnut Phase 2 CA (PDF, 4.42 MB, 67 pages) June 2023	Spirit Energy North Sea Oil Limited	-          N/A	-          All subsea installations, structures, surface laid pipelines and umbilicals, protection and stabilisation features will be recovered to shore for re-use or recycling. Buried pipelines to be left in situ. All wells will be decommissioned.	-          June 2023
Heather Upper Jacket DP (PDF, 3.24 MB, 41 pages) March 2023	EnQuest Heather Limited	-          -	-          The upper jacket and pipeline risers will be cut between 74m and 84m LAT and recovered to shore for recycling or disposal.	-          March 2023
Saltire A Topsides and Saltire Area Subsea Infrastructure DPs (PDF, 7.37 MB, 69 pages) Saltire EA (PDF, 7.09 MB, 109 pages) Saltire CA (PDF, 4.61 MB, 111 pages) December 2022	Repsol Sinopec Resources UK Limited	-          -	-          The topsides will be recovered for reuse, recycling or disposal. Subsea installations will be returned to shore for reuse, recycling or disposal. Bundles will be left in situ. Trenched and buried power cables and umbilicals will be left in situ with exposed sections being trenched and buried. Spools and transition sections shall be recovered to shore for reuse, recycling and disposal.	-          December 2022
Causeway & Fionn DP (PDF, 4.56 MB, 64 pages) Causeway & Fionn EA (PDF, 6.78 MB, 94 pages) Causeway & Fionn CA (PDF, 2.03 MB, 41 pages) December 2022	Ithaca Energy (UK) Limited	-          -	-          All Causeway and Fionn Subsea Installations and exposed tie-in spools will be removed and transported to shore for re-use or recycling. Pipelines and umbilicals will remain in situ with cut ends being buried. All wells will be plugged and abandoned.	-          December 2022
Johnston DP (PDF, 2.18 MB, 43 pages) Johnston EA (PDF, 5.25 MB, 121 pages) Johnston CA (PDF, 1.64 MB, 62 pages) December 2022	Premier Oil E&P UK EU Limited	-          -	-          Subsea installations will be recovered to shore for recycling and disposal. Trenched and buried rigid flowlines will be left in situ with exposed ends remediated with rock. Trenched and buried flexible flowlines, umbilicals, spool pieces and jumpers will be removed.	-          December 2022
Duart DP (PDF, 11.2 MB, 55 pages) Tartan Subsea EA (PDF, 36.4 MB, 137 pages) Tartan Subsea CA (PDF, 5.5 MB, 135 pages) November 2022	Repsol Sinopec Resources UK Limited	-          -	-          Subsea installations will recovered to shore. Trenched and buried pipelines and umbilicals will be left in situ, with remediation of any exposed sections	-          November 2022
Tartan N Terrace (TNT) & Tartan Satellite (TS) Subsea DPs (PDF, 4.07 MB, 72 pages) Tartan Subsea EA (PDF, 36.4 MB, 137 pages) Tartan Subsea CA (PDF, 5.5 MB, 135 pages) November 2022	Repsol Sinopec Resources UK Limited	-          -	-          Subsea installations and exposed surface laid lines will be recovered to shore. Piles will be cut to -3m below the seabed. Trenched and buried lines, and lines in open trenches but not adequately buried will be left in situ, with remediation of any exposed sections.	-          November 2022
Tartan Topsides DP (PDF, 8.28 MB, 46 pages) Tartan Subsea EA (PDF, 36.4 MB, 137 pages) November 2022	Repsol Sinopec Resources UK Limited	-          -	-          Topsides will be recovered to shore	-          November 2022
Lancaster Field Floating Production Storage and Offloading Vessel (FPSO) Decommissioning Programme (PDF, 2.51 MB, 37 pages) November 2022	Hurricane Energy PLC	-          -	-          The Floating Production Storage and Offloading Vessel (FPSO) will be removed to shore for either re-use or recycling.	-          November 2022
Hewett Area Subsea Installations DP (PDF, 4.45 MB, 54 pages) Hewett Area Subsea Installations EA (PDF, 14.8 MB, 150 pages) November 2022	Eni UK Limited	-          -	-          Subsea installations will be fully removed and recovered to shore for reuse, recycling or disposal.	-          November 2022
Scoter and Merganser DP (PDF, 4.63 MB, 92 pages) Scoter and Merganser CA (PDF, 1.94 MB, 47 pages) Scoter and Merganser EA (PDF, 6.4 MB, 130 pages) September 2022	Shell UK Limited	-          -	-          Subsea installations will be recovered to shore along with surface laid spools and jumpers. Buried pipelines will be left in situ.	-          September 2022
Sean DP (PDF, 5.05 MB, 64 pages) Sean CA (PDF, 2.8 MB, 110 pages) Sean EA (PDF, 9.44 MB, 171 pages) August 2022	ONE-Dyas UK Limited	-          -	-          Removal of 3 small platforms. Removal of pipeline SSIV and mooring buoys. Export pipelines to remain in situ. Cables and umbilicals returned to shore.	-          August 2022
Caister CDP1b (PDF, 5.96 MB, 56 pages) CMS Area EA (PDF, 10.4 MB, 171 pages) CMS Area CA (PDF, 13.5 MB, 145 pages) July 2022	Chrysaor Production (U.K.) Limited	-          -	-          Buried pipelines will be left in situ and surface laid pipelines will be removed to shore.	-          July 2022
Caister-Murdoch System CDP2 (PDF, 15.7 MB, 131 pages) CMS Area EA (PDF, 10.4 MB, 171 pages) CMS Area CA (PDF, 13.5 MB, 145 pages) July 2022	Chrysaor Production (U.K.) Limited	-          -	-          Topsides and jackets will be recovered to shore. Buried pipelines will be left in situ and surface laid pipelines will be recovered.	-          July 2022
Murdoch CDP3 (PDF, 8.53 MB, 83 pages) CMS Area EA (PDF, 10.4 MB, 171 pages) CMS Area CA (PDF, 13.5 MB, 145 pages) July 2022	Chrysaor Production (U.K.) Limited	-          -	-          Topsides and jackets will be recovered to shore. Buried pipelines will be left in situ and surface laid pipelines will be recovered.	-          July 2022
Brae Bravo Upper Jacket Decommissioning Programme (PDF, 1.76 MB, 41 pages) June 2022	TAQA Bratani Limited	-          -	-          The upper jacket and pipeline risers will be removed to 61m below LAT and recovered to shore for recycling or disposal.	-          June 2022
LOGGS Saturn Satellites LDP2 (PDF, 20 MB, 90 pages) LOGGS LDP2 - LDP5 Comparative Assessment (PDF, 3.21 MB, 203 pages) LOGGS LDP2 - LDP5 EA (PDF, 7.5 MB, 181 pages) June 2022	Chrysaor Production (U.K.) Limited	-          -	-          Topsides and jackets will be recovered to shore. Buried pipelines will be left in situ and the riser sections of pipelines will be removed to shore.	-          May 2022
Foinaven FPSO Offstation DP (PDF, 3.76 MB, 60 pages) May 2022	Britoil Limited	-          -	-          FPSO and mooring lines removed to shore for re-use or recycling. associated risers and umbilicals removed to shore for recycling.	-          May 2022
LOGGS V-Fields LDP4 (PDF, 20.8 MB, 83 pages) LOGGS LDP2 - LDP5 Comparative Assessment (PDF, 3.21 MB, 203 pages) LOGGS LDP2 - LDP5 EA (PDF, 7.5 MB, 181 pages) April 2022	Chrysaor Production (U.K.) Limited	-          -	-          Topsides and jackets will be recovered to shore. Buried pipelines will be left in situ.	-          April 2022
Hummingbird Spirit FPSO Sail away and Chestnut Riser Disconnection (PDF, 2.96 MB, 47 pages) March 2022	Spirit Energy North Sea Oil Limited	-          -	-          FPSO, mooring suction anchors and risers Removal to shore for either re-use or recycling	-          March 2022
Victoria DP (PDF, 2.54 MB, 42 pages) Victoria CA (PDF, 1.81 MB, 48 pages) Victoria EA (PDF, 18.4 MB, 158 pages) April 2022	NEO Energy (SNS) Limited	-          -	-           WHPS will be recovered to shore for reuse, recycling or disposal. Trenched and buried sections of pipelines will be left in situ, removing the pipeline ends. Exposed concrete mattresses and grout bags will be recovered to shore.	-          April 2022
Wenlock DP (PDF, 4.72 MB, 51 pages) Wenlock CA (PDF, 3.84 MB, 44 pages) Wenlock EA (PDF, 6.74 MB, 119 pages) February 2022	Alpha Petroleum Resources Limited	Energean UK Ltd	-          Platform, mid line tee protection structure, exposed tie-in spools and stabilisation features will be removed to shore. Trenched and buried pipelines will remain in situ.	-          February 2022
Cormorant Alpha Topsides DP (PDF, 3.91 MB, 81 pages) Cormorant Alpha Topsides EA (PDF, 8.21 MB, 117 pages) February 2022	TAQA Bratani Limited	-          -	-          Topsides Recovered to shore for reuse/recycling or disposal	-          February 2022
Caledonia Decommissioning Programme (PDF, 3.1 MB, 50 pages) Caledonia Comparative Assessment (PDF, 2.04 MB, 64 pages) Caledonia Environmental Assessment (PDF, 5.56 MB, 113 pages) February 2022	Premier Oil UK Limited	-          -	-          Subsea installations, trenched and buried flexible pipelines, umbilicals, spools and jumpers returned to shore for recycling or disposal, Trenched and buried rigid pipelines will be left in situ.	-          February 2022
Thistle Topsides Decommissioning Programme (PDF, 3.11 MB, 38 pages) December 2021	EnQuest Heather Limited	-          -	-          Recovery of topsides to shore for reuse, recycling or disposal	-          December 2021
Indefatigable 18A Topsides Decommissioning Programme (PDF, 1.29 MB, 50 pages) December 2021	Perenco UK Limited	-          -	-          Recovery of topsides to shore for reuse, recycling or disposal	-          December 2021
Banff and Kyle Decommissioning Programmes (PDF, 3.23 MB, 71 pages) Banff and Kyle Environmental Appraisal (PDF, 7.07 MB, 114 pages) Banff and Kyle Comparative Assessment (PDF, 2.75 MB, 106 pages) November 2021	CNR International (U.K.) Limited	-          -	-          Subsea installations, mooring piles, chains and surface laid pipelines returned to shore for reuse, recycling or disposal. Trenched pipelines will be left in situ.	-          November 2021

Ensign installation DP (PDF, 2.52 MB, 37 pages) Ensign Pipelines DP (PDF, 1.99 MB, 42 pages) Ensign CA (PDF, 1.67 MB, 48 pages) Ensign EA (PDF, 9.45 MB, 134 pages) August 2021	Spirit Energy North Sea Limited	-          -	-          Installations and all exposed grout bags and concrete mattresses will be recovered to shore for reuse or recycling. Buried pipelines will be left in situ with exposed ends cut and removed. Concrete Plinths and existing rock will be left in situ.	-          August 2021
Conrie, Don SW, W Don and Ythan Decommissioning Programmes (PDF, 7.29 MB, 88 pages) Don SW and W Don Comparative Assessment (PDF, 5.33 MB, 76 pages) Conrie, Don SW, W Don and Ythan Environmental Appraisal (PDF, 8.07 MB, 132 pages) August 2021	EnQuest Heather Limited	-          -	-          Installations, surface laid pipelines and associated concrete mattresses and grout bags will be recovered to shore for reuse, recycling or disposal. Trenched and buried sections of pipelines and existing rock dump will be left in situ.	-          August 2021
Fulmar and Auk North Topsides, Subsea Facilities and Pipelines Decommissioning Programme (PDF, 3.83 MB, 78 pages) Fulmar and Auk North Subsea Infrastructure and Pipelines Comparative Assessment (PDF, 4.63 MB, 144 pages) Fulmar & Auk North Environmental Appraisal (PDF, 5.17 MB, 114 pages) July 2021	Repsol Sinopec Resources UK Limited	-          -	-          Removal of topsides and subsea installations to shore for reuse, recycling or disposal. Trenched and buried pipelines will be left in situ. Tie-in spools and trench transition sections of the pipelines shall be cut, recovered and returned to shore for recycling. Exposed remaining sections of pipe shall be rock covered.	-          July 2021
Heather Topsides Decommissioning Programme (PDF, 4.07 MB, 43 pages) July 2021	EnQuest Heather Limited	-          -	-          Recovery of topsides to shore for reuse, recycling or disposal	-          July 2021
Kingfisher Decommissioning Programme (PDF, 2.95 MB, 76 pages) Kingfisher CA (PDF, 2.19 MB, 51 pages) Kingfisher EA (PDF, 3.48 MB, 119 pages) June 2021	Shell U.K. Limited	-          -	-          Removal of installations to shore for recycling or reuse. Trenched and/or buried pipeline sections will be decommissioned in situ. The end of the pipelines will be cut, and additional rock cover will be added to cut ends to reduce snagging risk.	-          June 2021
Gaupe Decommissioning Programme (PDF, 1.86 MB, 47 pages) Gaupe CA (PDF, 1.32 MB, 51 pages) Gaupe EA (PDF, 5.77 MB, 113 pages) May 2021	A/S Norske Shell	-          -	-          Full removal of SSIV, full removal of risers. Partial removal of pipelines and umbilicals.	-          May 2021
PL301 Heimdal to Brae Pipeline Decommissioning Programme (PDF, 7.71 MB, 53 pages) PL301 Heimdal to Brae Pipeline Comparative Assessment (PDF, 6.77 MB, 55 pages) PL301 Heimdal to Brae Environmental Appraisal (PDF, 9.64 MB, 114 pages) April 2021	Equinor Energy AS	-          -	-          Majority of pipeline will be left in situ with rock placement over spans/exposures. 20m surface laid section of pipeline out with the existing trench to be removed and recovered to shore.	-          April 2021
Hunter & Rita Decommissioning Programme (PDF, 2.1 MB, 44 pages) Hunter & Rita CA (PDF, 1.99 MB, 79 pages) Hunter & Rita EA (PDF, 4.96 MB, 131 pages) April 2021	Premier Oil E&P UK Limited	-          -	-          Subsea installations, Trenched & buried Flexible Flowlines & Umbilicals Rigid Spool pieces and jumpers will be returned to shore for recycling or disposal. Trenched and buried pipelines, failed flexible flowlines and umbilical will be left in situ. Exposed ends & areas of exposure to be removed & returned to shore for recycling or disposal. Local rock placement will be used to mitigate snag hazard from cut ends.	-          April 2021
LOGGS PR, LOGGS PC, LOGGS PP, LOGGS PA, North Valiant PD, & Associated Pipelines – LDP5 (PDF, 12.2 MB, 99 pages)	Chrysaor Production (U.K.) Limited April 2021	-          -	-          Removal of topsides and jackets to shore for recycling or disposal. Buried pipelines associated with PP will be left in situ and the riser sections of pipelines will be removed to shore for reuse or recycling with the PP and PR jackets.	-          April 2021
Windermere Decommissioning Programme (PDF, 1.95 MB, 41 pages) Windermere CA (PDF, 802 KB, 34 pages) Windermere ES (PDF, 7.86 MB, 231 pages) March 2021	INEOS UK SNS Limited	-	1.Removal Scheduleof Extensiontopsides and jacket to 31/12/2025shore &for Changerecycling or disposal. The pipelines will be partially removed, the exposed sections adjacent to decomthe solutionplatforms forwill coveringbe pipelineremoved and recycled or disposed onshore. The exposed ends will be lowered to useachieve rockadequate ratherdepth thanof backfillcoverage. JanuaryThe 2024existing buried sections of umbilical will be left in situ. All concrete mattresses and grout bags will be recovered to shore for reuse, recycling or disposal.	-          March 2021
Hewett Decommissioning Programme (PDF, 5.76 MB, 69 pages) Hewett Environmental Appraisal (PDF, 16.9 MB, 134 pages) March 2021	ENI Hewett Limited	-          -	-          All 6 platforms will be removed and returned to shore for processing/recycling or disposal	March 2021
Buchan & Hannay Decommissioning Programme (PDF, 3.33 MB, 57 pages) Buchan & Hannay CA (PDF, 3.83 MB, 91 pages) Buchan & Hannay EA (PDF, 8.29 MB, 115 pages) March 2021	Repsol Sinopec Resources UK Limited	-          -	-          Subsea installations and surface laid pipelines will be removed to shore for either reuse, disposal or recycling. Buried and stable pipelines will be left in situ.	-          March 2021
Huntington Decommissioning Programme (PDF, 2.52 MB, 41 pages) Huntington CA (PDF, 1.86 MB, 62 pages) Huntington EA (PDF, 5.01 MB, 127 pages) March 2021	Premier Oil E&P UK Limited	-          -	-          Subsea installations, Trench and Buried flexible pipelines, umbilicals, spools and jumpers will be returned to shore for recycling or appropriate treatment and disposal. Trenched and buried rigid, stable pipelines will be left in situ.	-          March 2021
Northern Producer FPF and Don SW + W Don riser disconnection (PDF, 4.89 MB, 58 pages) March 2021	Submitted jointly by Qualimar Shipping Company Limited and EnQuest Heather Limited	-          -	-          Removal for reuse, recycling or disposal of Northern Producer FPF, Mooring and anchor systems, mid water arch and risers and Pipeline sections and exposed mattresses within the 500m safety zone	-          March 2021
Balmoral Decommissioning Programme (PDF, 4.27 MB, 65 pages) Balmoral Area CA (PDF, 2.56 MB, 116 pages) Balmoral Area EA (PDF, 8.03 MB, 196 pages) February 2021	Premier Oil E&P UK Limited	-          -	-          The Balmoral FPV will be towed to a suitable location for re-sale, reuse, recycling or disposal. The mooring chains will be recovered to the point of burial at the anchor pile. Subsea installations will be returned to shore for recycling or appropriate treatment and disposal. Trenched and buried rigid, stable pipelines will be left in situ. Trenched and buried flexible pipelines, umbilicals, spools and jumpers will be removed to shore for recycling or appropriate treatment and disposal	-          February 2021
Brenda Decommissioning Programme (PDF, 1.76 MB, 47 pages) February 2021	Premier Oil E&P UK Limited	-          -	-          Subsea installations will be returned to shore for recycling or appropriate treatment and disposal. Trenched and buried rigid, stable pipelines will be left in situ. Trenched and buried flexible pipelines, umbilicals, spools and jumpers will be removed to shore for recycling or appropriate treatment and disposal.	-          February 2021
Glamis Decommissioning Programme (PDF, 2.53 MB, 46 pages) February 2021	Premier Oil E&P UK Limited	-          -	-          Subsea installations will be returned to shore for recycling or appropriate treatment and disposal. Trenched and buried rigid, stable pipelines will be left in situ. Trenched and buried flexible pipelines, umbilicals, spools and jumpers will be removed to shore for recycling or appropriate treatment and disposal.	-          February 2021
Nicol Decommissioning Programme (PDF, 1.68 MB, 45 pages) February 2021	Premier Oil E&P UK Limited	-          -	-          Subsea installations will be returned to shore for recycling or appropriate treatment and disposal. Trenched and buried rigid, stable pipelines will be left in situ. Trenched but not backfilled umbilicals will be fully removed by reverse reeling, with deburial, and returned to shore for reuse, recycling or appropriate treatment and disposal. Trenched and buried flexible pipelines, umbilicals, spools and jumpers will be removed to shore for recycling or appropriate treatment and disposal	-          February 2021
Stirling Decommissioning Programme (PDF, 3.13 MB, 44 pages) February 2021	Premier Oil E&P UK Limited	-          -	-          Trenched and buried rigid, stable pipelines will be left in situ. Trenched and buried flexible pipelines, umbilicals, spools and jumpers will be removed to shore for recycling or appropriate treatment and disposal.	-          February 2021
Topaz Decommissioning Programme (PDF, 2.21 MB, 31 pages) Topaz CA (PDF, 504 KB, 15 pages) Topaz EA (PDF, 1.22 MB, 37 pages) February 2021	INEOS UK SNS Limited	-	1.Wellhead ScheduleProtection ExtensionStructure, will be returned to 31/12/2025shore &for Changerecycling toor decomappropriate solutiontreatment forand coveringdisposal. The Trenched and Buried, stable pipeline endsand toumbilical usewill rockboth ratherbe thanleft backfillin Januarysitu.	February 20242021	-
North Cormorant DP (PDF, 2.56 MB, 50 pages) North Cormorant EA (PDF, 7.26 MB, 93 pages) November 2020	TAQA Bratani Limited	-          -	-          Removal to shore for recycling or reuse	-          November 2020
Tern Topsides - Decommissioning Programme (PDF, 2.84 MB, 52 pages) Tern Topsides EA (PDF, 7.03 MB, 91 pages) November 2020	TAQA Bratani Limited	-          -	-          Removal to shore for recycling or reuse	-          November 2020
Fulmar & Auk North Preparation Work Scopes Decommissioning Programme (PDF, 1.53 MB, 35 pages) November 2020	Repsol Sinopec North Sea Limited	-          -	-          preparation work scopes relating to the Fulmar and Auk North installations	-          November 2020
East Brae Topsides and Braemar Decommissioning Programmes (PDF, 3.88 MB, 62 pages) September 2020	RockRose UKCS8 LLC	TAQA Bratani Limited	-          Removal of topsides and subsea installations to shore for reuse or recycling. Removal to shore of surface laid pipelines. Trenched and buried pipelines to remain in situ	-          September 2020
Brent Alpha Jacket (PDF, 2.82 MB, 101 pages) July 2020	Shell U.K. Limited	-          -	-          Jacket to be removed to 84.5m below sea level for removal to shore for recycling/disposal. Footings to remain in situ	-          July 2020
Amethyst A1D, A2D, B1D & C1D Topsides (PDF, 2.42 MB, 43 pages) July 2020	Perenco UK Limited	-          -	-          Removal of topsides to shore for reuse, recycling or disposal	-          July 2020
Anglia Decommissioning Programme (PDF, 2.18 MB, 61 pages) Anglia CA (PDF, 3.74 MB, 49 pages) Anglia EA (PDF, 5.83 MB, 120 pages) June 2020	Ithaca Energy UK Limited	-          -	-          Removal of topsides and jacket to shore for recycling or reuse. Pipelines will remain in-situ. All tie-in spools for the 8” import line, 12” export line and 3” Methanol line will be completely removed. Partial removal of 6” umbilical.	-          June 2020
Brynhild Pipelines (PDF, 1.98 MB, 50 pages) June 2020	Lundin Energy Norway AS	Aker BP ASA	-The trenched and buried sections of pipelines and umbilicals will be decommissioned in situ. The exposed sections will be remediated by either cut with removal to shore, trench and burial or rock cover. Exposed mattresses will be removed to shore for reuse, recycling or disposal. The PLET, support frames and protection covers will be completely removed to shore for reuse, recycling or disposal.	June 2020	Brynhild Pipelines Close Out Report (PDF, 2.86 MB, 25 pages)	March 2024
Cormorant Alpha Derrick Structure Removal (PDF, 4.28 MB, 57 pages) June 2020	TAQA Bratani Limited	-          -	-          Removal of drilling derrick structure and installation of modular drilling rig to facilitate well P&A	June 2020	Cormorant Alpha Derrick Structure Removal Close Out Report (PDF, 5.17 MB, 38 pages)	December 2023
Cavendish (PDF, 2.4 MB, 40 pages) June 2020	INEOS UK SNS Limited	-	1.Removal Schedule Extension to 31/12/2024shore Augustof 2022topsides 2.and Schedulejacket. ExtensionPartial toremoval 31/12/2025of &pipelines Change(buried tosections decomleft solutionit forsitu).	June covering pipeline ends to use rock rather than backfill January 20242020	-
Banff and Kyle FPSO and FSO Float Off (PDF, 3.45 MB, 39 pages) May 2020	CNR International (U.K.) LimitedLimited.	-          -	-          Removal of FPSO and FSO to shore for redeployment. The STL Buoy and associated mooring lines will be removed to shore for recycling. Associated riser sections and umbilicals within the water column will be removed to shore for recycling	May 2020	Banff and Kyle FPSO and FSO Float Off Interim Close Out Report (PDF, 2.31 MB, 36 pages)	May 2021
Eider Topsides DP (PDF, 2.38 MB, 50 pages) May 2020	TAQA Bratani Limited	-          -	-          Removal of topsides to shore for recycling or reuse	-          May 2020

Ganymede, Europa, Callisto and NW Bell – LDP3 (PDF, 4.85 MB, 101 pages) May 2020	Chrysaor Production (U.K.) Limited	-          -	-          Removal of topside and jackets to shore. NW Bell pipelines will be recovered to shore. Ganymede, Europa and Callisto interfield pipelines will be decommissioned in situ.	-          May 2020
Ganymede ZD Topsides - LDP3b (PDF, 2.31 MB, 46 pages) April 2020	Chrysaor Production (U.K.) Limited	-          -	-          Removal of topsides to shore for recycling or reuse.	-          April 2020
Huntington FPSO (Voyageur Spirit) (PDF, 1.19 MB, 21 pages) April 2020	Premier Oil E&P UK Limited	-          -	-          The Huntington FPSO (Voyageur Spirit) is to be floated off station and redeployed. The risers and mooring system will be removed and taken to shore	-          April 2020
Caister - CDP1a (PDF, 2.93 MB, 49 pages) March 2020	Chrysaor Production (U.K.) Limited	-          -	-          Topsides and Jacket and associated sections of pipeline risers attached to the Caister platform removed to shore for recycling or reuse.	-          March 2020
Alma & Galia DPs (PDF, 4.34 MB, 61 pages) March 2020	EnQuest Heather Limited	-          -	-          Removal of FPSO to shore for recycling. Partial removal of the mooring anchor piles. The mooring chain will be cut locally to the mooring pile and buried to 1m below seabed. Removal of manifolds, wellhead protection structures and pipelines.	-          March 2020
Brent Field Pipelines (PDF, 4.05 MB, 130 pages) March 2020	Shell U.K. Limited	-          -	-          Removal to shore for recycling/disposal, trench/backfill, buried pipelines left in situ	-          March 2020
Thistle COS Tanks (PDF, 3.34 MB, 59 pages) January 2020	EnQuest Heather Limited	-          -	-          Removal of crude oil storage tanks to shore for recycling	-          January 2020
Banff SAL Buoy (PDF, 996 KB, 20 pages) November 2019	CNR International (U.K.) Limited. Decommissioning Programmes submitted by Teekay Petrojarl Floating Production UK Ltd.	-          -	-          Removal of subsea installations to shore for either reuse or recycling. Part of pipeline to be returned to shore for recycling	November 2019	Banff SAL Buoy Interim Close Out Report (PDF, 1.22 MB, 12 pages)	May 2021
MacCulloch Decommissioning Programmes (PDF, 1.36 MB, 40 pages) November 2019	Chrysaor Production (U.K.) Limited	-          -	-          The anchors will be decommissioned in situ. All other installations and pipelines will be removed to shore for either reuse or recycling	-          November 2019
Goldeneye (PDF, 3.41 MB, 53 pages) November 2019	Shell U.K. Limited	-          -	-          Removal of topsides, jacket and sections of pipelines from the Goldeneye Platform up to but excluding the main pipeline tie-in flanges to shore for reuse or recycling.	-          November 2019
Brae Alpha West Drilling Rig (PDF, 2.2 MB, 24 pages) September 2019	RockRose Energy UKCS8 LLC	TAQA Bratani Limited	-Removal of the drilling rig to shore for recycling or disposal	September 2019	Brae Alpha West Drilling Rig Close Out Report (PDF, 1.68 MB, 24 pages)	April 2024
South Morecambe DP3/DP4 (PDF, 2.72 MB, 57 pages) September 2019	Spirit Energy Production UK Limited	-          -	-          Removal of topsides and jackets to shore for either reuse or recycling. Buried and stable pipelines left in situ, exposed pipeline ends cut and recovered to shore for either reuse or recycling	-          September 2019
Pickerill A&B Installations (PDF, 1.79 MB, 54 pages) September 2019	Perenco Gas (UK) Limited	-	1.Removal Scheduleof Extensiontopsides and jackets to 31/12/2024shore Februaryfor 2022either reuse or recycling.	-          September 2019
Minke Decommissioning Programmes (PDF, 8.56 MB, 59 pages) September 2019	Neptune E&P UKCS Limited	-	1.Removal Scheduleof ExtensionWHPS and small surface laid sections of pipelines to 31/12/2024shore Julyfor 2021reuse or recycling. Buried sections of pipelines to be left in situ	-          September 2019
Ketch (PDF, 2.65 MB, 60 pages) August 2019	DNO North Sea (ROGB) Limited	-	1. Allow for installation of UKNG Viking Cable & Change in decom solution of pipelines to full removal June 2022 2. Include pipeline and fibre optic crossings into DP & Change in decom solution for pipelines remaining under rock berms & additional rock dump on pipeline ends September 2022 3. To alter the S29Holders November 2023 4. Change in decom solution of pipeline sections to leave in situ May 2024	-
Schooner (PDF, 4.97 MB, 63 pages) August 2019	DNO North Sea (ROGB) Limited	-	1.Topsides, Allowjackets forand subsea installation ofremoved UKNGto Vikingshore Cablefor Junereuse, 2022recycling 2.or Todisposal. alterTrenched the S29Holders November 2023 3. Addition of WHPS to DP and itsburied removalpipelines &left Change in decomsitu	August solution of exposed pipeline sections to full removal May 20242019	-
Juliet (PDF, 6.16 MB, 47 pages) August 2019	Neptune E&P UKCS Limited	-	1.Removal Scheduleto Extensionshore of subsea installations and small surface laid sections of the pipeline and umbilical for either reuse or recycling; buried sections to 31/12/2024be Julyleft 2021in-situ	-          August 2019
Dunlin Alpha to Cormorant Alpha Pipeline - PL5 (PDF, 4.36 MB, 73 pages) July 2019	Fairfield Betula Limited	-          -	-          Trenched sections will be left in situ, exposed pipeline ends cut and recovered and severed ends rock dumped	July 2019	PL5 Close Out Report (PDF, 4.74 MB, 27 pages)	February 2021
Ninian Northern Platform (PDF, 2.34 MB, 70 pages)	CNR International (U.K.) Limited June 2019	-          -	-          Topsides and jacket to top of footings to be removed to shore for recycling/disposal. Footings to remain in situ.	-          June 2019
Nevis N11 WHPS (PDF, 1.66 MB, 26 pages) June 2019	Apache Beryl I Limited	-          -	-          Removal of WHPS to shore for reuse or recycling	June 2019	Nevis N11 WHPS Close out report (PDF, 1.86 MB, 25 pages)	September 2022
Dunlin Alpha Topsides (PDF, 4.97 MB, 44 pages) May 2019	Fairfield Betula Limited	-          -	-          Removal of topsides to shore for recycling or disposal	-          May 2019
Hewett (PDF, 1.5 MB, 21 pages) April 2019	Eni Hewett Limited	ENI UK Limited	-removal of Vent Stack & other preparatory works	April 2019	Hewett Vent Stack Close Out Report (PDF, 595 KB, 11 pages)	September 2021
Pickerill A & B (PDF, 1.26 MB, 21 pages) March 2019	Perenco Gas (UK) Limited	-          -	-          removal of Telecommunication towers, sub-cellar deck equipment, appurtenances, caissons, associated tanks and lift pumps, supply hoses, a pipeline riser emergency shutdown valve and tertiary steelwork to shore for reuse, recycling or disposal	-          March 2019
Curlew B, C and D (PDF, 2.4 MB, 61 pages) March 2019	Shell U.K. Limited	-          -	-          FPSO, subsea installations, some pipelines removed to shore for recycling / disposal. Buried pipelines to remain in situ	-          March 2019
Viking Platforms, Vixen and associated Pipelines (VDP2) (PDF, 33.3 MB, 84 pages) January 2019	ConocoPhillips (U.K.) Limited	-          -	-          all platforms and subsea installations recovered to shore for reuse, recycling or disposal. Pipelines will be left in situ	-          January 2019
Victor (VDP3) (PDF, 21.1 MB, 55 pages) January 2019	ConocoPhillips (U.K.) Limited	-          -	-          Platform and subsea installation recovered to shore for reuse, recycling or disposal. Pipelines will be left in situ	-          January 2019
Tyne South Installations (PDF, 1.83 MB, 42 pages) January 2019	Perenco UK Limited	-          -	-          Topsides, jacket and subsea installation removed to shore for reuse, recycling or disposal	-          January 2019
Guinevere Installation (PDF, 2.05 MB, 43 pages) January 2019	Perenco UK Limited	-          -	-          Topsides and jacket removed to shore for reuse, recycling or disposal	-          January 2019
Beatrice Decommissioning Programmes (PDF, 4.45 MB, 88 pages) January 2019	Repsol Sinopec Resources UK Limited	-          -	-          AP Topsides, AD, Bravo and Charlie Platforms and AD Drilling Template removal to shore for reuse/recycling. Buried pipelines will be left in situ. Remediation for any exposed sections	-          January 2019
Bains Decommissioning Programmes (PDF, 2.57 MB, 36 pages) January 2019	Spirit Energy Production UK Limited	-          -	-          Subsea Installation removed to shore for reuse/recycling. Pipelines to be decommissioned in situ.	-          January 2019
Jacky (PDF, 2.34 MB, 52 pages) October 2018	Ithaca Energy (UK) Limited	-          -	-          Wellhead Platform and Midline Tee Structure removed to shore for either reuse or recycling. Pipelines are trenched and buried and will be left in situ	-          October 2018
Brae Bravo Topsides, Flare Bridge, Flare Tower and Flare Jacket and Substructure (PDF, 4.9 MB, 52 pages) August 2018	Marathon Oil UK LLC	TAQA Bratani Limited	-Brae Bravo Topsides, Flare Bridge, Flare Tower and Flare Jacket/Substructure removed to shore for either reuse or recycling	August 2018	Brae Bravo Topsides Close Out Report (PDF, 3.29 MB, 36 pages)	January 2024
Brent Alpha, Bravo and Charlie Topsides (PDF, 3.34 MB, 81 pages) August 2018	Shell U.K. Limited	-          -	-          Topsides removed to shore for recycling/disposal	-          August 2018
Stirling A33 WHPS Decommissioning Programme (PDF, 1.13 MB, 27 pages) May 2018	Premier Oil E&P UK Limited	-          -	-          Subsea installation removed to shore for recycling	May 2018	Stirling WHPS Close Out Report (PDF, 2.57 MB, 15 pages)	February 2019
Ann and Alison (PDF, 2.98 MB, 60 pages) April 2018	Spirit Energy North Sea Limited	-          -	-          installations and surface laid pipelines recovered to shore for either reuse or recycling. Buried and stable pipelines left in situ.	-          April 2018
Saturn (Annabel) (PDF, 2.49 MB, 47 pages) April 2018	Spirit Energy North Sea Limited	-          -	-          installations and surface laid pipelines recovered to shore for either reuse or recycling. Buried and stable pipelines left in situ.	-          April 2018
Audrey (PDF, 2.87 MB, 58 pages) April 2018	Spirit Energy North Sea Limited	-          -	-          Topsides and jackets removed to shore for recycling/disposal and surface laid pipelines recovered to shore for either reuse or recycling. Buried and stable pipelines left in situ.	-          April 2018
Rev Decommissioning Programme (PDF, 12 MB, 42 pages) April 2018	Repsol Norge AS	-          -	-          Buried and stable pipeline to be left in situ. Remaining pipelines recovered to shore along with mattresses.	-          April 2018
Markham ST-1 (PDF, 2.39 MB, 49 pages) February 2018	Centrica Production Nederland B.V.	Spirit Energy Nederland B.V.	-Platform removed to shore for reuse/recycling and pipelines to be left in situ.	February 2018	Markham ST-1 Close Out Report (PDF, 6.19 MB, 68 pages)	July 2021
Osprey (PDF, 3.92 MB, 68 pages) December 2017	Fairfield Fagus Limited	-          -	-          Installation removed to shore for recycling/disposal. Full removal with the exception of the Bundles, Umbilical Risers within the Dunlin Alpha Concrete Gravity Based Structure or those trenched, and rock dumped.	December 2017	Osprey Close Out Report (PDF, 1.71 MB, 34 pages)	January 2021
Merlin (PDF, 2.97 MB, 56 pages) December 2017	Fairfield Fagus Limited	-          -	-          Installation removed to shore for recycling/disposal. Full removal with the exception of trenched and rock dumped pipelines and umbilicals and umbilical riser within the Dunlin Alpha Concrete Gravity Based Structure.	December 2017	Merlin Close Out Report (PDF, 1.47 MB, 27 pages)	January 2021
Dunlin Fuel Gas Import (DFGI) and Dunlin Power Import (DPI) (PDF, 3.48 MB, 54 pages) December 2017	Fairfield Fagus Limited	-          -	-          Installation removed to shore for recycling/disposal. Full removal with the exception of trenched and rock dumped pipelines and rigid riser and riser cable within the Dunlin Alpha Concrete Gravity Based Structure.	December 2017	DFGI/DPI Close Out Report (PDF, 2.19 MB, 30 pages)	January 2021
Viking Satellites CD, DD, ED, GD, HD Pipelines (PDF, 6.77 MB, 32 pages) November 2017	ConocoPhillips (U.K.) Limited	-          -	-          All pipelines and associated mattresses to remain in situ.	-          November 2017
LOGGS Satellites Vulcan UR, Viscount VO, Vampire OD - LDP1 (PDF, 17.5 MB, 61 pages) November 2017	ConocoPhillips (U.K.) Limited	-          -	-          Topsides and jackets removed to shore for recycling/disposal. All pipelines and associated mattresses to remain in situ.	-          November 2017
Leman BH Decommissioning Programme (PDF, 4.66 MB, 46 pages) April 2017	Shell U.K. Limited	-          -	-          Topside and jacket removed to shore for reuse/recycling.	April 2017	Leman BH Close Out Report (PDF, 1.71 MB, 25 pages)	March 2019
Ettrick and Blackbird (PDF, 2.1 MB, 62 pages) March 2017	Nexen Petroleum U.K Limited	-          -	-          FPSO removed for reuse at different location. Subsea equipment removed to shore for reuse/recycling. Buried pipelines to be left in situ with the remaining pipelines removed to shore.	-          March 2017
Ann A4 Decommissioning Programme (PDF, 1.37 MB, 29 pages) February 2017	Centrica North Sea Limited	-          -	-           WHPS to be removed to shore for reuse/recycling.	-          February 2017
Janice James & Affleck (PDF, 3.8 MB, 115 pages) September 2016	Maersk Oil UK Limited	-          -	-          FPSO removed to shore for recycling. Subsea equipment removed to shore for reuse/recycling. Buried pipelines to be left in situ with the remaining pipelines removed to shore.	-          September 2016
Athena Decommissioning Programmes (PDF, 3.88 MB, 70 pages) September 2016	Ithaca Energy (UK) Limited	-          -	-          FPSO removed for reuse at different location. Subsea equipment removed to shore for reuse/recycling. All pipelines to be removed to shore.	-          September 2016
Viking Platforms (PDF, 3.53 MB, 40 pages) September 2016	ConocoPhillips (U.K.) Limited	-          -	-          Topsides and jackets to be removed to shore for recycling/disposal.	-          September 2016
Leadon (PDF, 1.71 MB, 53 pages) March 2016	Maersk Oil North Sea UK Limited	TotalEnergies E&P UK Limited	-FPSO removed for reuse at different location. Removal of 2 x bundle towheads and mid-line structure to shore for disposal; removal of 2 x drill centres to shore for disposal. 2 x pipeline bundles to be left in situ, partial removal of gas import pipeline.	March 2016	Leadon Close Out Report (PDF, 7.78 MB, 31 pages)	February 2023
Harding STL (PDF, 2.61 MB, 73 pages) December 2015	TAQA Bratani Limited	-          -	-          Harding Submerged Turret Loading (STL) System to be replaced by new Offshore Loading System. STL to be removed to shore for recycling/disposal and shuttle tanker mooring and loading buoy interfaces returned to owner.	December 2015	Harding STL Close-Out Report (PDF, 1.62 MB, 26 pages)	June 2017
Thames Area – Horne & Wren (PDF, 1.57 MB, 48 pages) November 2015	Tullow Oil SK Limited	-          -	-          Removal of topsides and jackets to shore for recycling/disposal. Pipelines to remain buried in situ.	-          November 2015
Thames Area – Orwell (PDF, 828 KB, 42 pages) November 2015	Tullow Oil SK Limited	-          -	-          Removal of subsea installations to shore for recycling/disposal. Pipelines to remain buried in situ.	-          November 2015
Thames Area – Wissey (PDF, 1.26 MB, 43 pages) November 2015	Tullow Oil SK Limited	-          -	-          Removal of subsea installations to shore for recycling/disposal. Pipelines to remain buried in situ.	-          November 2015
Thames Area – Thames Complex (PDF, 15.9 MB, 76 pages) October 2015	Perenco UK Limited	-	1. Removal of pipelinetopsides fromand thejackets programmeto Marchshore 2018for 2.recycling/disposal. ScheduleRemoval Extensionof subsea installations to 31/12/2023shore Marchfor 2019recycling/disposal. Pipelines to remain buried in situ.	-          October 2015
Thames Area – Gawain (PDF, 3.8 MB, 47 pages) October 2015	Perenco UK Limited	-	1.Removal Scheduleof Extensionsubsea installations to 31/12/2022shore Marchfor 2019recycling/disposal. 2.Pipelines Scheduleto Extensionremain toburied 31/12/2024in Septembersitu.	October 20222015	-
Thames Area – Arthur (PDF, 4.41 MB, 46 pages) October 2015	Perenco UK Limited	-	1.Removal Scheduleof Extensionsubsea installations to 31/12/2022shore Marchfor 2019recycling/disposal. 2.Pipelines Scheduleto Extensionremain toburied 31/12/2024in Marchsitu.	October 20222015	-
Brent - Brent Delta Topside (PDF, 3.55 MB, 72 pages) July 2015	Shell U.K. Limited	-          -	-          Removal of topside to shore for recycling and disposal.	July 2015	Brent Delta Topside Close Out Report (PDF, 4.42 MB, 53 pages)	February 2020
Rose Decommissioning Programmes (PDF, 2.87 MB, 42 pages) May 2015	Centrica Resources Limited	-          -	-          Removal of subsea installations to shore for recycling/disposal. Removal of sections of untrenched pipelines, trenched pipelines to remain in situ.	May 2015	Rose Close Out Report (PDF, 3.31 MB, 36 pages)	October 2018
Stamford (PDF, 2.71 MB, 39 pages) April 2015	Centrica North Sea Gas Limited	-          -	-          Removal of subsea installations to shore for recycling/disposal. Removal of sections of untrenched pipelines, trenched pipelines to remain in situ.	April 2015	Stamford Close Out Report (PDF, 2.66 MB, 36 pages)	February 2019
Murchison (PDF, 2.37 MB, 70 pages) August 2014	CNR	-          -	-          Removal of topsides and jackets to shore for recycling/disposal. Footings to remain in situ. Export pipeline to remain in situ with remedial rock placement. Infield Flowlines to be removed for recycling/disposal.	-          August 2014
Rubie & Renee (PDF, 2.47 MB, 50 pages) April 2014	Endeavour Energy UK Limited	-          -	-          Removal of subsea installations to shore for recycling/disposal. Selective recovery of pipelines.	April 2014	Rubie Renee Decommissioning Close Out Report (PDF, 9.98 MB, 66 pages)	September 2021
Miller (PDF, 6.57 MB, 198 pages) December 2013	BP Exploration (Alpha) Limited	-          -	-          Footings to remain in situ. Steel topsides and jacket to top of footings to be removed to shore.	-          December 2013
Schiehallion & Loyal Phase One (PDF, 1.84 MB, 60 pages) April 2013	Britoil Limited	-          -	-          FPSO removed for potential reuse. Pipeline recovery where possible. Production pipelines to remain in situ.	April 2013	Schiehallion & Loyal Phase One Close Out Report (PDF, 1010 KB, 22 pages)	May 2019
IVRR - decommissoning programme (PDF, 1.57 MB, 102 pages) February 2013	Hess Limited	-          -	-          FPSO removed for reuse at different location. Removal of subsea installations to shore for recycling/disposal. Selective recovery of pipelines.	February 2013	IVRR Close Out Report (PDF, 4.74 MB, 35 pages)	December 2015
Camelot (PDF, 488 KB, 39 pages) June 2012	Energy Resource Technology (UK) Limited	-          -	-          Removal of platform to shore for recycling/disposal. Pipelines to remain in situ.	June 2012	Camelot Close out report (PDF, 2.27 MB, 41 pages)	August 2013
Fife, Flora, Fergus, Angus: decommissioning programme (PDF, 8.36 MB, 135 pages) February 2012	Hess Limited	-          -	-          FPSO removed for reuse at different location. Removal of subsea installations to shore for recycling/disposal. Removal of untrenched pipelines, trenched pipelines to remain in situ.	February 2012	FFFA Close Out Report (PDF, 1.49 MB, 33 pages)	December 2014
Don (PDF, 8 MB, 175 pages) May 2011	Britoil Public Limited Company	-          -	-          Removal of subsea installation to shore for recycling/disposal. Pipelines to remain in situ with selective recovery.	-          May 2011
Welland DP (PDF, 1.74 MB, 39 pages) September 2010	Perenco UK Limited	-          -	-          Removal of subsea installation to shore for recycling/disposal. Pipelines to remain in situ with selective recovery.	September 2010	Welland Close Out Report (PDF, 7.42 MB, 130 pages)	September 2020
Tristan NW DP (PDF, 4.11 MB, 119 pages) August 2010	Silverstone Energy Limited	Bridge Energy UK Limited	Removal of subsea installation to shore for recycling. Production pipeline with piggy-backed umbilical - leave in situ; jumpers, spool pieces and associated pipeline equipment - remove to shore for re-use or recycling.	August 2010	Tristan NW close out report (PDF, 2.3 MB, 23 pages)	January 2011
Shelley DP (PDF, 3.23 MB, 83 pages) June 2010	Premier Oil	-          -	-          FPSO removed for reuse at different location. Removal of subsea installations to shore for recycling/disposal. Production pipeline to remain in situ. Umbilical removed in sections.	June 2010	Shelley close out report (PDF, 4.49 MB, 62 pages)	February 2012
Kittiwake Sal DP (PDF, 4.28 MB, 87 pages) June 2009	Venture North Sea Oil Limited	-          -	-          SAL Assembly - removal to shore for re-use. Revision to approved decommissioning programme: Completion of the removal of the SAL Assembly extended to 31 July 2012. The flexible flowline removed to shore for re-use.	June 2009	Kittiwake Sal close out report (PDF, 588 KB, 13 pages)	July 2012
MCP-01 DP (PDF, 7.41 MB, 336 pages) September 2007	Total E&P UK Limited	-          -	-          Concrete substructure to remain in situ; topsides to be removed to shore for re-use, recycling or disposal.	September 2007	MCP-01 close out report (PDF, 23.1 MB, 113 pages)	March 2013
Kittiwake Buoy DP (PDF, 3.46 MB, 118 pages) May 2008	Venture North Sea Oil Limited	-          -	-          Exposed Location Single Buoy Mooring System (ELSBM) removal to shore for recycling or disposal.	-          May 2008
Linnhe (PDF, 2.25 MB, 66 pages) July 2008	Mobil North Sea LLC	-          -	-          Removal of WHPS to shore for recycling. Removal of subsea installations to shore for recycling/disposal. Pipelines to remain in situ; pipeline sections outside trenches removed to shore.	July 2008	Linnhe Close Out Report (PDF, 1000 KB, 22 pages)	November 2013
Indefatigable (Shell) (PDF, 11.6 MB, 224 pages) May 2007	Shell UK Limited	-          -	-          Removal of installations to shore. Infield and export pipelines to remain in situ; hose bundles removed to shore.	May 2007	Close Out Report (PDF, 2.47 MB, 64 pages)	December 2014
NW Hutton: decommissioning programme (PDF, 14.9 MB, 320 pages) February 2006	Amoco (U.K.) Exploration Company - now a subsidiary of BP plc	-          -	-          Footings to remain in place, steel topsides and jacket to top of footings to be removed to shore. Pipelines to remain in situ.	February 2006	Close Out Report (PDF, 2.52 MB, 32 pages)	October 2014
Ardmore 2005	British American Offshore Limited	-          -	-          Mobile Jack-Up rig removed for reuse.	-          2005
Ardmore 2005	Ugland Nordic Shipping AS	-          -	-          Single Anchor Loading Systems to be removed to shore for reuse. Pipelines to be removed for reuse	-          2005
Ardmore 2005	Acorn Oil & Gas Limited	-          -	-          Subsea equipment including guide frame removed to shore.	-          2005
Brent Flare DP (PDF, 2.93 MB, 122 pages) 2004	Shell	-          -	-          Brent Flare removal to shore for recycling and disposal.	-          2004
Beatrice 2004	Talisman Energy (UK) Limited	-          -	-          Platforms to be removed for reuse.	-          2004
Forbes and Gordon 2003	BHP Billiton	-          -	-          Pipelines to be left in situ - retrench any area of pipeline with less than 0.4m depth of cover.	May 20052003	-	May 2005
Frigg DP (PDF, 10 MB, 450 pages) May 2003	Total E&P Norge AS	-          -	-          Concrete substructures to remain in place; concrete topsides to be removed to shore; steel installations to be removed to shore; infield pipelines to be removed to shore	May 2003	Frigg close out report (PDF, 3.46 MB, 62 pages)	May 2011
Durwood and Dauntless 2002	Amerada Hess	-          -	-          Pipelines to be left in situ.	-          2002
Hutton 2002	Kerr McGee	-          -	-          Tension Leg Platform to be removed for reuse. 1 pipeline to be removed to shore. 1 pipeline to be left in situ.	July 20042002	-	July 2004
Camelot CB 2001	ExxonMobil	-          -	-          Platform to be removed for reuse or recycling.	-          2001
Blenheim and Bladon 2000	Talisman	-          -	-          FPSO to be removed for reuse. Pipelines to be removed to shore.	-          2000
Durwood and Dauntless 2000	Amerada Hess	-          -	-          FPSO to be removed for reuse. Subsea facilities removal to shore.	-          2000
Maureen and Moira 2000	Phillips	-          -	-          Platform removal to shore for reuse or recycling. Concrete Loading Column removal to shore for reuse or recycling. 2 pipelines removal to shore. 1 pipeline to be left in situ.	-          2000
Brent Spar 1998	Shell	-          -	-          Oil Storage and Loading Facility to be removed for reuse as part of quay extension. Brent Spar Anchor Blocks - removal to shore for reuse, recycling or disposal	-          1998
Donan 1998	BP	-          -	-          FPSO to be removed for reuse.	-          1998
Fulmar SALM 1998	Shell	-          -	-          Single Anchor Leg Mooring Buoy to be removed to shore. Pipeline to be left in situ.	-          1998
Emerald 1996	MSR	-          -	-          FPSO to be removed for reuse. Pipeline to be left in situ.	-          1996
Frigg FP 1996	Elf Norge	TotalFinaElf Norge	-          Flare column to be removed to shore.	-          1996
Leman BK 1996	Shell	-          -	-          Platform removal to shore.	-          1996
Staffa 1996	Lasmo	-          -	-          Pipeline to be removed to shore.	-          1996
Viking AC, AD, AP & FD 1996	Conoco	-          -	-          Platforms to be removed to shore.	-          1996
Esmond CP & CW 1995	BHP	-          -	-          Platforms to be removed to shore.	-          1995
Gordon BW 1995	BHP	-          -	-          Platform to be removed to shore.	-          1995
Angus 1993	Amerada Hess	-          -	-          FPSO to be removed for reuse.	-          1993
Forbes AW 1993	Hamilton	BHP	-          Platform to be removed to shore.	-          1993
Argyll, Duncan and Innes 1992	Hamilton	BHP	-          FPSO to be removed to shore. Catenary Anchor Leg Mooring (CALM) Buoy to be removed to shore. Pipelines to be removed to shore.	-          1992
Blair 1992	Sun Oil	AGIP	-          1 pipeline removal for reuse. 1 pipeline to be left in situ.	-          1992
Crawford 1991	Hamilton Oil	BHP	-          FPF to be removed to shore. Catenary Anchor Leg Mooring (CALM) Buoy to be removed to shore. Subsea facilities removal to shore.	-          1991
Piper Alpha 1988	Occidental	Talisman	-          Platform left in situ.	-          1988

Notification of disused pipelines

During the course of a field’s life, pipelines/sections of pipelines may be taken out of use, e.g. due to corrosion, problems with reservoir pressure, damage to the pipeline, etc. When this happens, under the Petroleum Act 1998 the Secretary of State has the option of immediately calling for a full decommissioning programme. This is not always considered an appropriate option however, and so it has been agreed consideration will be given to handling suitable pipelines, under an informal decommissioning regime, thereby deferring a formal programme until the end of the field’s life.

If a formal decommissioning programme is not immediately deemed suitable, details of the out of use pipeline(s) will be circulated to other government departments for comment. Following this, OPRED will decide one of the following:

• we are content with the proposals for monitoring and maintaining the out-of-use pipeline
• we request additional information or further remedial action
• we request a formal decommissioning programme

The Interim Pipeline Regime is intended to ensure out of use lines do not pose a risk to other users of the sea or the environment and that they are covered by an appropriate surveying and maintenance regime from the point when they are taken out of use until approval of the formal decommissioning programme, which is usually at the end of field life. It should be noted that any interim solution should not prejudice the final decommissioning options for that line, including complete removal. The department expects operators to submit details of out of use pipelines/sections of a pipeline as soon as they are taken out of use.

Operators are reminded that any works that are proposed on any pipelines under the Pipeline Works Authorisation regime, as per their Terms and Conditions of the PWA, must have a legal consent in place before works can commence which includes but is not exclusive to any proposed decommissioning works. Consents are issued by the North Sea Transition Authority (NSTA) and operators are requested to email consents@nstauthority.co.uk on any queries that they may have relating to legal consents. Further guidance can also be found on the NSTA website.

Once the necessary legal consent has been issued by NSTA, Consents & Authorisations Section, Operators are to email a completed IPR1 Form (MS Word Document, 63.7 KB) to odu@energysecurity.gov.uk.

If you are an operator, aware of any out of use pipelines that have not been referred to the department, please submit a completed IPR1 Form at your earliest convenience.

Following confirmation a pipeline has been accepted under the Interim Pipeline Regime, the Offshore Decommissioning Unit will continue to monitor the condition of the pipeline by asking the Operator to confirm the status of the pipeline remains unchanged following future surveys at an agreed frequency. If you are an operator who wishes to request a change to the agreed frequency of surveys following acceptance of a pipeline into the IPR, please submit a completed IPR2 Form (MS Word Document, 53.4 KB) to odu@energysecurity.gov.uk. Please note that a recent survey (done that year) must have been completed before any change of survey frequency will be considered.

Further information

A list of all installations on the UKCS and their current status is available from the OSPAR Website

At the first ministerial meeting of the Commission for the Protection of the Marine Environment of the North East Atlantic (OSPAR) in 1998, a binding decision was agreed that set rules for the disposal of offshore installations at sea. Under the decision the dumping and leaving wholly or partly in place of offshore installations is prohibited. Decision 98/3 recognises it may be difficult to remove the ‘footings’ of large steel jackets weighing more than 10,000 and concrete installations. As a result there are derogations for these categories of installations if the internationally agreed assessment and consultation process shows leaving them in place is justifiable.

OPRED has utilised decommissioning programme templates for derogation and non-derogation projects. These templates include all required content as detailed in Annex C of the guidance notes. There are also templates available which are currently being trialled for more specific and small scale decommissioning activity including rig reactivation and removal of a single Wellhead Protection Structure. Operator’s should discuss all individual cases with OPRED who will advise of the appropriate template.

A Standard Decommissioning Programme Template (Non-Derogation Cases) (PDF, 1.03 MB, 34 pages) is available - (November 2018).

A Standard Decommissioning Programme Template (Derogation Cases) (PDF, 1.11 MB, 37 pages) is also available (November 2018).

A word version of these templates can also be requested from OPRED. Please email odu@energysecurity.gov.uk for further details.

Cost recovery

OPRED will charge a fee in respect of offshore (oil and gas) installations and pipelines decommissioning programmes under the Petroleum Act 1998. Guidance, including the indicative fee structure, is available in Guidance on charging a fee for offshore (oil and gas) installations and pipelines under the Petroleum Act 1998 (PDF, 308 KB, 9 pages)