Chevron Corporation (CVX) is speeding up expansion at the Tengiz oilfield in Kazakhstan to raise its output to around 1% of global crude supply. With this ramp-up process, Chevron is likely to complete the expansion by the end of February, four months earlier than expected. The $48 billion expansion, which started in January, indicates a pivotal development in the energy sector.An Insight Into CVX’s Tengiz Oilfield ExpansionThe first oil from the $48 billion expansion started flowing after the startup of Te ...