text: Halliburton Posts Loss on Asbestos Charge  HOUSTON (Reuters) - Halliburton Co. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=HAL.N target=/stocks/quickinfo/fullquote"&gt;HAL.N&lt;/A&gt; , the world's  No. 2 oil field services company, on Tuesday fell to a  quarterly loss as \$230 million in charges to fund its asbestos  settlement outweighed gains in its energy business.