AP: Britain has granted Chevron Corp. permission to begin the first new deepwater drilling in the North Sea since the Gulf of Mexico oil spill, brushing aside calls for a U.S.-style moratorium on off-shore drilling. The decision, confirmed on Friday, means that Chevron can begin drilling an exploratory well immediately in its remote Lagavulin prospect in waters north of the Shetland isles off the Scottish coast. Chevron said drilling was “imminent” but no firm start date had yet been …