EnQuest Heather Limited has submitted, for the consideration of the Secretary of State for Business, Energy & Industrial Strategy, draft Decommissioning Programmes for the Conrie, Don South West, West Don and Ythan fields located in UK Blocks 211/13b, 211/18a, and 211/18e of the Northern North Sea Sector of the United Kingdom Continental Shelf. In accordance with the provisions of the Petroleum Act 1998, it is a requirement of the Act that interested parties be consulted on such decommissioning proposals.

The facilities covered by the Decommissioning Programmes are:

• Don South West and West Don Single Anchor Loading Buoy Mooring Base (‘SALB’);

• Don South West and West Don pipelines PL2578, PL2579, PLU2580, PLU2580JSG, and PLU2580JSO;

• Conrie wellhead protection structure (1x);

• Conrie pipelines PL2572 (original identification numbers 5 to 8 only), PL2573 (original identification numbers 18 to 21 only) and PLU2576JP4;

• Don South West wellhead protection structures (10x);

• Don South West pipelines PL2572 (excluding identification numbers 5 to 8), PL2573 (excluding identification numbers 18 to 21), PLU2576, PLU2576JP1 through PLU2576JP7, PLU2577, PLU2577JWI2, PLU2577JWI3, PLU2577JWI4, PL2581, PL4262, and PL4557;

• West Don wellhead protection structures (5x);

• West Don pipelines PL2582, PL2583, PL2584, PLU2585, PLU2585JP1, PLU2585JP2, PLU2585JP3, and PLU2585JWI1, PLU2585JWI2, and PL4261;

• Ythan wellhead protection structure (1x); and

• Ythan pipelines PL3749, PL3751, PLU3752, PLU3753, and PLU3754.

The SALB is located approximately 521km North-North East of Aberdeen while the Conrie, Don South West, West Don and Ythan fields are located approximately 527km North-North East of Aberdeen.

EnQuest Heather Limited hereby gives notice that the combined Decommissioning Programmes for Conrie, Don South West, West Don and Ythan fields and associated installations and pipeline infrastructure can be viewed at the internet address: www.enquest.com/operations/uk-decommissioning

Alternatively, a digital or hardcopy of the Decommissioning Programmes can be requested from Mr Ian Wood at ian.wood@enquest.com.

Interested parties are kindly requested to submit any representations in writing or electronically by 29 January 2021 to the following address for the attention of Mr Ian Wood:

EnQuest Heather Limited

5th Floor, Cunard House

15 Regent Street

London

SW1Y 4LR

Date 15 December 2020.