Cairn Energy : Mexico Drilling Update

FOR IMMEDIATE RELEASE

5 May 2020

CAIRN ENERGY PLC ("Cairn")

Mexico Drilling Update

Operations have been completed on the Eni operated Ehecatl-1 exploration well on Block 7, located in the Sureste Basin Offshore Mexico, in which Cairn has a 30% working interest through wholly owned subsidiary Capricorn Energy Mexico.

The exploration target of the well was to prove hydrocarbons in the Lower Miocene. The well did not find reservoired hydrocarbons and it has now been permanently plugged and abandoned.

Logging, sampling and data collection during the well operations will help the joint venture calibrate the seismic data and develop an improved understanding of the Lower Miocene target and the information gathered will be integrated to improve the understanding of the Block and inform the second well decision.

The well is located 65 kilometres offshore and was drilled by the Valaris 8505 semi-submersible rig in water depth of 426 metres and reached a total depth of 4,451 metres.

Enquiries:
Analysts/Investors
David Nisbet, Corporate Affairs	Tel: [phone]
Media
Linda Bain, Corporate Affairs	Tel: [phone]
Patrick Handley/David Litterick, Brunswick Group LLP	Tel: [phone]

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 the North Sea, West Africa and Latin America, underpinned by interests in production and development assets. Cairn has its headquarters in Edinburgh, Scotland supported by operational offices in London, Senegal and Mexico.

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