Senegal Update

FOR IMMEDIATE RELEASE 17 December 2018

CAIRN ENERGY PLC ("Cairn" or "the Company")

Senegal Update

The enclosed announcement has been reported by Woodside Energy with regards to the SNE development in Senegal in which Cairn has a 40% working interest.

Click on, or paste the following link into your web browser, to view the associated PDF document.

http://www.rns-pdf.londonstockexchange.com/rns/6061K_1-2018-12-16.pdf

Enquiries to:

Analysts / Investors

David Nisbet, Corporate Affairs Tel: 0131 475 3000

Media

Linda Bain, Corporate Affairs Tel: 0131 475 3000Cairn Energy PLC

Patrick Handley, Will Medvei Tel: 0207 404 5959

Brunswick Group LLP

About Cairn Energy PLC

Cairn is one of Europe's leading independent oil and gas exploration and development companies and has been listed on the London Stock Exchange for 30 years. Cairn has explored, discovered, developed and produced oil and gas in a variety of locations throughout the world as an operator and partner in all stages of the oil and gas lifecycle.

Cairn's exploration activities have a geographical focus in North West Europe, West Africa and Latin America, underpinned by interests in production and development assets in the North Sea. Cairn has its headquarters in Edinburgh, Scotland supported by operational offices in London, Norway, Senegal and Mexico.

For further information on Cairn please see: www.cairnenergy.com