Buy Cairn Energy potential 50 % Profit, Cairn Energy is one of the 6 UK based oil companies we are investing in, if the price of the shares return to January 2020 value this would give a 50% profit based on today’s price. The other oil companies we are investing in are: PREMIER OIL, TULLOW OIL, ENQUEST, ROCKHOPPER ENERGY & PHAROS ENERGY