ExplorationShell signs up Maersk Drilling rig for UK gas prospectJack-up Maersk Resilient set to start drilling Pensacola well in southern North Sea in SeptemberOn call: the jack-up Maersk Resilient will drill the Pensacola gas prospect in the UK southern North SeaPhoto: MAERSK DRILLINGRob WattsLondon