Venezuela Raises Taxes on Orinoco Deals &lt;p&gt;&lt;/p&gt;&lt;p&gt; By Pascal Fletcher&lt;/p&gt;&lt;p&gt; CARACAS, Venezuela (Reuters) - Venezuela on Sunday slappedhigher taxes on foreign oil companies operating in its hugeOrinoco heavy crude belt in what President Hugo Chavez called adrive to tighten sovereign control over petroleum resources.&lt;/p&gt;