WeeklyEni targets new drilling to confirm Calypso sizeItalian operator does not disagree with Cypriot authorities' estimate of field holding reserves of between 6 Tcf and 8 Tcf but says appraisal needed to gain greater insight into reservoirIn the spotlight: the drillship Saipem 12000, which drilled the Calypso well for Eni, was intercepted by the Turkish Navy off CyprusNassir ShirkhaniCairo