EnQuest Heather Limited has submitted, for the consideration of the Secretary of State for Business, Energy & Industrial Strategy, a draft Decommissioning Programme for the topsides of the Thistle Alpha located in UK Block 211/18a 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 Programme are:

The topsides of the Thistle Alpha platform located approximately 201km North-East of Shetland.

EnQuest Heather Limited hereby gives notice that the Decommissioning Programme for Thistle Alpha topsides can be viewed at the following internet address:

www.enquest.com/operations/uk-decommissioning

Alternatively, a digital or hardcopy of the Decommissioning Programme 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 22 October 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 21 September 2021.