QatarEnergy has signed an agreement with British oil giant Shell to buy a 27% participating interest in the North Cleopatra exploration block offshore Egypt. The deal, which requires approval from the Egyptian Government, will see Shell retain a 36% participating interest and operate the block. Other partners in the project include Chevron with a 27% interest and Tharwa Petroleum Company with a 10% stake. The North Cleopatra block, part of the frontier Herodotus basin, spans more than 3,400km² in wate ...