premise: Cairn Energy PLC is one of Europe's leading independent oil and gas exploration and development companies and is listed on the London Stock Exchange. Cairn has discovered and developed oil and gas reserves in a variety of locations around the world. Cairn Energy has a primary listing on the London Stock Exchange and is a constituent of the FTSE 250 Index.
hypothesis: Cairn Energy is listed on the New York Stock Exchange 
reason: many companies are listed on multiple stock exchanges, london is just one it appears on