<span style="line-height: 20.8px;">A Delaware judge ruled on Friday that the Dallas pipeline operator&nbsp;</span><a href="http://www.nytimes.com/topic/company/energy-transfer-equity-lp?inline=nyt-org" style="line-height: 20.8px;" title="More information about Energy Transfer Equity LP">Energy Transfer Equity</a><span style="line-height: 20.8px;">&nbsp;is entitled to terminate its $38 billion merger with the&nbsp;</span><a href="http://topics.nytimes.com/top/news/business/companies/williams_companies/index.html?inline=nyt-org" style="line-height: 20.8px;" title="More information about Williams Companies Inc">Williams Companies</a><span style="line-height: 20.8px;">, culminating one of the most contentious cases of buyer&rsquo;s remorse in recent memory.&nbsp;</span>