U.S. Pressed Halliburton in Kuwaiti Deal  WASHINGTON (Reuters) - The U.S. ambassador to Kuwait and  other senior U.S. officials put pressure on Halliburton &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=HAL.N target=/stocks/quickinfo/fullquote"&gt;HAL.N&lt;/A&gt;  to award a contract to a Kuwaiti company suspected of  overcharging to bring fuel into Iraq, according to State  Department documents released on Wednesday.