keywords: nigeria reuters crude markets mount
text: Crude Sets Record, Nigeria Concerns Mount &lt;p&gt;\&lt;/p&gt;&lt;p&gt; By Richard Mably&lt;/p&gt;&lt;p&gt; LONDON (Reuters) - London crude prices hit record highs on\Monday as Nigeria emerged as the new focus of worries about\supply security on world oil markets.&lt;/p&gt;