Lundin Petroleum spud its Ogna exploration well, in PL453S, off Norway. Drilled by the Maersk Guardian, the wildcat will target hydrocarbons in the upper to middle Jurassic reservoirs of the Ogna prospect, located 65km northeast of BP’s Ula field in the southern North Sea. Ogna is estimated to contain unrisked, gross, prospective resources of 156mmboe.