MOSCOW, July 24 (Reuters) - Russia's FSB security service has started handing out clearance for foreign tankers to access the Black Sea ports, allowing for Kazakhstan's oil exports to resume, four industry sources said on Thursday.
Two industry sources said on Wednesday that foreign tankers were being temporarily barred from loading at Russia's main Black Sea ports following new regulations, effectively blocking oil exports from Kazakhstan handled largely by a consortium partly owned by U.S. energy majors.