Fortune | Chevron Drives Oil Companies and Kazakhstan to Boost Oil Production in a Major Way Fortune Kazakhstan and a group of oil companies led by Chevron CVX -0.64% have approved a $36.8 billion plan to boost production at the Central Asian country's Tengiz field, a rare major investment in an industry hit by low prices and a boost to the local economy. Chevron Approves $37 Billion Expansion of Kazakh Oil Field Kazakhstan: Tengiz oil a vote of confidence Chevron Approves $37 Billion Expansion of Kazakh Oil Project |