Blue Chips End Lower, Earnings Disappoint  NEW YORK (Reuters) - U.S. blue-chips ended slightly lower  on Wednesday after Honeywell International Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=HON.N target=/stocks/quickinfo/fullquote"&gt;HON.N&lt;/A&gt; and  J.P. Morgan Chase   Co. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=JPM.N target=/stocks/quickinfo/fullquote"&gt;JPM.N&lt;/A&gt; disappointed investors with  quarterly reports, and high oil prices rekindled worries about  the impact on corporate profit margins.