Senegal

Cairn has been active in Senegal since 2013. In 2014 Cairn made two significant discoveries in Senegal, one of which was potentially the largest global oil discovery in 2014.

6

Successful wells drilled offshore Senegal

2

Basin opening oil discoveries

Map of Senegal assets

Summary of interest

Rufisque Offshore

Cairn 40% (operator), ConocoPhillips 35%, FAR Limited 15%, Petrosen 10%

Sangomar Deep Offshore

Cairn 40% (operator), ConocoPhillips 35%, FAR Limited 15%, Petrosen 10%

Sangomar Offshore

Cairn 40% (operator), ConocoPhillips 35%, FAR Limited 15%, Petrosen 10%

Overview

Cairn has been active in Senegal since 2013 and drilled two wells in 2014, discovering oil in both and opening a new hydrocarbon basin on the Atlantic Margin, with the SNE-1 discovery recognised as the largest global oil discovery in 2014.

These were the first wells to be drilled offshore Senegal in more than 20 years and the first deep-water wells. The success of the programme and the discoveries have attracted the attention of the global oil industry.

In 2015 the Government of Senegal approved Cairn and its Joint Venture partners’ extensive evaluation plan with Cairn going on to drill four further successful appraisal and exploration wells in the SNE field in the first half of 2016. This successful drilling programme has significantly increased 2C oil resources to 473 million barrels with associated 2C oil in place in excess of 2.7 billion barrels. Drilling is scheduled to recommence in Senegal shortly.

Cairn has a 40% WI as Operator in three blocks offshore Senegal (Sangomar Deep, Sangomar Offshore and Rufisque); ConocoPhillips has 35% WI, FAR Limited 15% WI and Petrosen, the national oil company of Senegal, 10% WI. The three blocks cover 7,490km2.