evidence: British claims to ownership of Rockall – the isolated Atlantic outcrop jutting out of a potentially vast and lucrative oilfield around 240 miles west of Scotland – is to be examined within weeks by the UN. [...] The 1972 Island of Rockall Act formally declared it as part of Invernesshire, even though the nearest permanently inhabited settlement is 228 miles away in the Outer Hebrides. [...] Rockall, nonetheless, sits on a plateau claimed by all four nations. Britain and Ireland have agreed a common marine border that leaves Rockall in the UK sector.