Tengizchevroil’s Kazakh Tax Burden doubles

    Tengizchevroil’s Kazakh tax burden doublesThe tax burden for the Kazakhstan’s Tengizchevroil oil venture more than doubled from 2009 to 2010, according to information provided by Kazakhstan’s Finance Tax Ministry and cited Friday by the Bloomberg news agency.     Tengizchevroil’s total tax burden jumped from $3.06 billion in 2009 to $6.7 billion in...