ALMATY, Kazakhstan (AFX) – Production at Kazakhstan’s Tengizchevroil field could increase to 1 million barrels of oil per day in 2012, from about 300,000 barrels currently, according to Guy Hollingsworth, regional director of ChevronTexaco, which has a 50% stake in the field. He said ChevronTexaco is also looking at offshore investments in the Caspian Sea…