(AGI) Rome, June 26 - Eni's CEO Claudio Descalzi has signed inHanoi a production sharing contract for the exploration ofoffshore block 122 with the president and CEO of PetroVietnam,Do Van Hau. Block 122 covers a surface of 6,900 squarekilometres in the Phu Khanh Basin, in waters that reach a depthof 2,000 metres. The exploration period will last seven yearsand is divided into two stages. . .